ooh, woot.com just had Razer Diamondback 3G for $30 shipped yesterday... I was going to post it in [H]otdeals, but for some reason the admins extended the 50 post minimum to that section... dumb.
I would watch the [H]otdeals section though, or like whoodie said, check E-bay.
I love my Razer DeathAdder, if you want to go wireless my Logitech G7 was very close and has the sensitivity adjust however you do lose a button for your thumb which made me switch.
Nice mouse.. I agree though that a few dollars more for the G5 is an even better deal.. I've always preferred Logitech's mice over any other manufacturer.. Heck.. My wife is using an old Logi mouse I bought about 4-5 years ago, and it works flawlessly.. Heheh..