currently using a MS Wireless Mouse 5000. I got it for almost nothing, so I have been just sucking up my complaints- my issue is that with this mouse I am stuck in what would best be described as a claw like fingertip grip (sort of; as the top part of my hand is the mouse contact point vice the heel of my hand) due to my rather large hands. I would like to go with something that is bigger that I could actually rest my hand on. Any good sources for big handed mouse comparisons?