While I can invest in a Wacos tablet if necessary, Im interested in getting a mouse that is more accurate than my Mighty Mouse. I have used both the wired and wireless versions the wireless one jumps and slows down when it comes to hone in on something small (like a close window button), and the wired one isnt much better. I do a lot of masking in Photoshop on small areas like windows in homes and small selected areas. What I want is a good, fast and highly accurate conventional mouse with a scroll wheel. Suggestions from folks who use Photoshop all day? Thanks.