I'm sort of the opposite of Rip, I need a good mousing surface to keep my accuracy consistent. For 20 to 40$ there are tons of options, I use the Steel Series flimsy but flat textured medium sized thin surface. I hate mats that are made of that thicker rubber that frays and grabs at the mouse at the edges with a passion, or grabs your fingernails often as well. I really like the smoother flat harder surface thin stuff. This one I got for 14$ on sale, and it's the best I've used so far, simple but effective -
http://www.memoryexpress.com/Products/MX25959While I've said I'm not a Razer fan, for an MMO mouse I too would pick the Nana Epic probably, as there just ain't that many options, and it seems the best for that. I don't really play anything needed that many buttons, so I just go with something more simple and streamlined, but that's just me.