I'm in the market for a new mouse. I currently have the Logitech MX610 wireless laser mouse and would like a wired--the having to change the batteries on the MX610 is annoying. It's a little on the heavy side as well. Also, it can be on the jumpy side sometimes (low batteries?) I was just wanted some suggestions. I'm no gamer, but I spend a lot of time on the computer and would like a good mouse that isn't jumpy. I was looking at the Logitech MX400 (laser), Logitech G3 (laser--don't need the G5) and (optical) MX518. Any other mouse recommendations (different brands?) Thank you.