I guess the V450 Nano is right for you. Or maybe this one that's a little cheaper and is under your budget:
Newegg.com - Microsoft BNA-00001 5 Buttons Tilt Wheel USB 2.4 GHz Wireless Laser Notebook Mouse 7000 - Mouse
What's wrong with optical? I can use my MX518 without a pad, no problem.
Newegg.com - Microsoft BNA-00001 5 Buttons Tilt Wheel USB 2.4 GHz Wireless Laser Notebook Mouse 7000 - Mouse
What's wrong with optical? I can use my MX518 without a pad, no problem.