I know people like to hate on them but I had a Razer Lachesis for about 3-4 years and it worked absolutely magnificently - excellent sensitivity and precision for both gaming and my work in Inkscape. Oddly enough, I prefer doing vectors with a mouse as opposed to my Intuos 4, go figure. I packed that up and sent it off to a friend of mine who needed a new mouse and it's still going strong and working excellently, although I freely admit that I'm completely obsessive about taking care of everything I have.
A couple of months ago I bought the SWTOR edition Razer Naga (shut up, it looks awesome) and I have zero complaints. It feels solid, it's comfortable to use, it's even more precise, and I can switch between wired and wireless depending on where I am and which computer I'm using. The wireless isn't bad as far as wireless mice go, it's got a rechargable battery, good battery life, and the wireless receiver is a charging dock, just slap it on and it recharges, no plugging it in. Also, Razer has software that lets you store your mouse settings on their servers so you can switch between computers without having to set everything up again. Doesn't take a lot of time, really, but it's still kinda nice.