I myself have the Cellpoint Flamingo headset. This is great since it fits in your ear instead of on your ear so it does not interfere with glasses at all. It also comes with a bunch of ear peices so you can size it to fit right for you. When I have it in for hours I still can not tell that it is there.
http://cgi.ebay.com/Cellpoint-Flamin...QQcmdZViewItem