[gigaflop]

>> I think I might like an upright ergonomic mouse that's shaped to my hand

I use a Logitech MX Vertical mouse for work, and actually love it for pretty much all non-gaming/pixel-perfect tasks. It feels like it naturally fits my hand in terms of shape and size, which adds up over 40h weeks.

[elric]

I've tried them, but something about the button placement feels off for the shape of my hand. I recommend them to people quite often, and they're usually well received.