If its the one i'm looking at on ebay now.. about $5 + $13 in postage.
Video resolution : 720 * 480 AVI.
Video frame rate : 30 fps (±1 fps) .
Supporting system : Windowsme/2000/XP/2003/Vista etc.
Storage support : Micro SD card. Support 128M/256M/512M/1GB/2GB/4GB/8GB
Dimension: 55 x 18 x 22 mm (approx).
(720x480 is standard DVD output size, so not bad - 16:9 letterbox format)
For something that cheap.. i'd be weary.
Personally, i'd go with
this:
Multi-function sunglasses - shoot video, take photos, and play MP3s
Records video with audio
640x480, AVI video format
Remote control for photo shooting
Rechargeable battery (2 hrs recharge time)
Battery life 1.5 hrs for video
Battery life 3 hrs for music/photos
USB 2.0 connection
USB storage device
Video storage: approx. 4 hours
8GB storage capacity
Lightweight frames
Anti-scratch Polarized lenses
Replaceable lenses
Stereo headphones
$99 USD, which may be a bit hard on the wallet, but you can't ask for anything better in my opinion.