This Earphone

JandR.com has the Sennheiser HD201 DJ Stereo Headphones for $18 + $7 shipping = $25 shipped. Closed ear coupling with powerful stereo sound, good attenuation of ambient noise.

Product description from JandR.com:

Powerful stereo sound / Rich, crisp bass response / Lightweight and comfortable to wear / Good attenuation of ambient noise / Extremely rugged

Request a copy of the manufacturer’s warranty, click here for details

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SharperImage.com has the Sharper Image Quiet Place Noise-Cancellation Headphones $149.95 Shipped after free shipping on $100 or more coupon.

Product description from SharperImage.com:

• Escape the noisy world — and relax in your own “quiet place™” with our new, improved noise-cancellation stereo headphon!
  es.
• Small microphones pick up surrounding lower-frequency noise; electronics immediately generate opposite “anti-noise” sound waves — the result is peace and quiet at the push of a button.
• New and improved speakers feature 40mm neodymium magnetic drivers, higher sensitivity and greater power than earlier models.
• Active noise cancellation is powered by 2 AAA batteries (included).

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CellHut.com has the Motorola HS820 Glossy Bluetooth Headset - Black & Silver for $24.98 - $5 off coupon code “HS82F” (Expires 11/01/2007) = $19.98 with free shipping.
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TigerDirect.com has the Jabra BT8010 Bluetooth Mono/Stereo Headset w/ Attachable Speaker for $50 + $7 shipping = $57 shipped. Supports the A2DP profile, so you can play music through the headset (with a compatible phone).
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Buy.com has the Iogear 2.1 Wireless Bluetooth Headset - Class 2 for $42.80 - $25 Exclusive Mail-In rebate (Expires 10/31/2007) = $17.80 with free shipping.

Product description from Buy.com:

Freedom and Comfort. Enjoy true hands-free freedom with IOGEAR
lls through your Bluetooth enabled computers, detail instruction included in the package. To make your computer Bluetooth enabled, please purchase the IOGEAR Bluetooth USB adapter (GBU211)

Comfortable and lightweight: One of the smallest and lightest headset on the market and conveniently fits either ear.

Extra accessories: AC and USB charger allows charging from either AC source or from your computer.

Multifunction button: Call/answer button on the headset lets you conduct calls without having to pick up the phone. The IOGEAR Bluetooth Headset also supports several features built into many handsets, such as voice dialing, three-way calling, and mute.

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Newegg.com has the Logitech 9803690403 3.5mm Connector Supra-aural Premium Stereo Headset for $11.99 + $4.99 shipping = $16.98 Shipped.

Product description from Newegg.com:

Do you love to voice-chat or play multi-player games but hate having to lean over to your microphone to talk? Then Logitech has the answer for you. Their Premium Stereo Headset has a built in microphone and comfortable soft foam ear cups for comfort durin!
g extended sessions. Convenient inline controls let you mute the microphone and adjust the volume. The noise canceling microphone eliminates extraneous noise so what you say comes through loud and clear.

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Musician’s Friend has the Shure E2c Noise Isolating Headphones for only $49.99 with free shipping.

Product description from Musician’s Friend:

Shur!
e E2 Sound Isolating Earphones give you in-ear, full range sound in a new earphone design. Unobtrusive, low mass/high energy designed specifically for use with Shure PSM systems. Delivers incredible sound that ear buds and other headphones can’t.

Along with their high-fidelity, full-bandwidth transducers, the ergonomic shape allows them to rest comfortably in the ear canal, providing a tight seal for sonic isolation and a snug fit. They can be used with foam, flex or triple flange accessory sleeves (provided). The universal 3.5mm (1/8″) plug connects to Shure’s PSM body pack receivers, as well as to many other personal audio applications where high fidelity is required.

Dell Home has the Sennheiser RS100 Open Stereo Supra-aural Wireless Headphones for $59.99 + $4.99 shipping = $34.99 Shipped.

Computer Geeks has the Macally Bluetooth Wireless Stereo Headset And Transmitter For IPod for $21.99 + shipping = $28.99 Shipped.

Product description from Computer Geeks:

Be free, go wireless!

Listen to your iPod in style with no wires attached! The Macally Bluewave Wireless Headphones for iPod use advanced Bluetooth frequency-hopping technology for interference-free, crystal clear audio. Digital wireless technology provides over 30 feet of range.!

These headphones include a wireless adapter that snaps onto your iPod player, plus integrated controls so you can adjust the volume without ever touching your player. The power of wireless audio is in your control with the Macally Bluewave Wireless Headphones for iPod.

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Circuit City has the Sennheiser PXC 450 Noise-Cancelling Headphones for $450 - 30% off in cart with purchase of iPod or MP3 player = $315 with free shipping.

Product description from Circuit City:

Great sound: The PXC 450 headphones feature an adaptive baffle damping and patented Duofol™ diaphragm technology for pristine audio production.

Noise-cancelling: Sennheiser’s exclusive NoiseGard™ 2.0 active noise compensation system effectively reduces up!
to 90% of ambient noise.

Comfortable fit: This headphone set features luxurious materials for long-lasting comfort. The detachable cable and replaceable ear pads extend the operating life.

Volume control: Simple-to-use volume control is integrated into the headphone. Active/bypass mode enables use as a noise-cancelling or closed-back headphone. The TalkThrough function lets you communicate with the people around you while wearing the headphones.

Highly portable: These comfortable, sturdy and foldable headphones are perfect for use with in-flight entertainment systems, MP3 players and home entertainment systems. Plus, they come with a flight adapter and carrying case.