Grumble.

I've been using a WMO for, like, 10 years and recently decided I'd like a new mouse with side buttons. Diablo 3 right around the corner and they help with browsing. Popped online to do some research and found this forum and had a chuckle at my good ol' reliable $10 mouse being one of the most oft recommended.

Turns out, the WMO is basically the only mouse that I can use for extended periods of time without cramping up. In the past two weeks I've ordered and returned:

Zowie AM
Razer Death Adder
SteelSeries Kana
MS IME 3.0 Legend Edition

Currently using a G9x, which I like, but again isn't doing great things for my hand/wrist. The AM is too thin, the DA is too large and fitted, the Kana was just bad and the IME felt (don't kill me) flimsy and cheap all around.

Any suggestions, folks?