Been doing a bit of researching and soul searching on the purchase of a mouse or trackball. Got my G5 and it came with the "hockey puck" that Apple calls a mouse. What a waste of plastic. Anyway, since my G5 came with bluetooth I was initially interested in getting a bluetooth mouse BUT after using the hockey puck I'd really like a track ball. I've been using a Logitech trackball that I really like but it is not cordless nor is it USB. Course both Logitech and Kensington have USB trackballs and since the trackball won't be moving I can live with the cord (though I'd really like to work my bluetooth). Anyway, I've seen the Kensington Expert Mouse Trackball and it looks interesting. MacAddict has given it a "3" rating. Anyone have it? What are your impressions? Soonest pls, got to get rid of the puck.