i have the mx510 which is really good but after this one mysteriously breaks i plan on getting the mx1000. all reviews have said it is by far the most accurate mouse out with great battery life and absolutely no lag whatsoever because of it being wireless. it gets perfect reviews everywhere. biggest drawback to it is spending 70 bucks on a mouse.
2.8 p4 @ 3.15 900fsb, 4 sticks corsair xms cas latency 2-3-3-6 256mb each, leadtek 6800 gt 256mb @ultra speeds, gigabyte ga8ik1100 mobo, nec 3500a 16x dual layer dvd burner, tdk 48x cd burner, wd 74gb raptor hd, windows xp pro sp2, dell 2005fpw 20 inch widescreen lcd monitor