Corsair. M70/M75 I believe. They are FPS oriented with dedicated sniping (DPI shift) buttons in addition to the standard DPI+ and - buttons.
The M90/M95 is also an excellent mouse, very comfortable, but may have more buttons than you need. It's heavy too, so I think its better suited for those who use high DPI and don't move the mouse too much.
I own their mousepad as well, the MM400, its very good. Gliding is smooth but it is textured enough for very precise control. Its also cheap (at least it was when I bought it).