What's the most comfortable mouse you've ever used?

I need something that's comfortable and reliable. I love my Sidewinder, but it really makes my hand cramp during extended sessions. I need something that fits the curve of my hand properly. On-the-fly DPI adjustment is a major plus, but not a deal-breaker. Any standouts?

i have an OCZ equalizer mouse and i've hadn't had a better mouse since then. on the fly dpi change, two primary buttons plus two buttons on the side, mouse wheel, and the triple threat action button which clicks your primary mouse key 3 times. works well for pistols in COD4 and used to work good for pistols in tf2 until they limited the firing rate. its comfortable and has yet to fail for me

oh, and it should only cost like 30-35 bucks

Sounds like it's in my price range! I might check it out also.
Good thread!

I'm also strongly considering the Logitech MX518. Amazing reviews.

www.newegg.com/Product/Product.aspx?Item=N82E16826104178

www.newegg.com/Product/Product.aspx?Item=N82E16800998120

here is the ocz one...guess they don't sell it no more

Second the Deathadder