Why are you so opposed to a cordless mouse?
Because when you're gaming milliseconds make a difference. You've got the lag from your internet connection. The lag from your monitor. The lag from your mouse. They all add up and compound each other. The more lag you can eliminate the better.
Does a better mouse really improve your productivity though? I just really can't see it. Maybe if you're doing video editing and things of that nature, but for standard work???
Does a bigger monitor, or a dual monitor setup improve your productivity? Does a better chair? You're sat in front of a computer umpteen hours a day, so why not have the best equipment to make that experience as painless as possible? Ergonomic chair, big dual monitor setup, a nice desk at the right height, keyboard tray, a nice keyboard, a nice mouse and mousing surface all add up to a nicer experience.
No, unless you play games. A bigger mousepad is always nice though.
This. I just got this mousepad a couple months back when I picked up the new mouse and it is amazing...
ROCCAT STUDIOS V3.0 - PRODUCTS » Gaming Mousepads » ROCCAT Hiro
It's vulcanized sandwiched rubber and silicone and almost zero friction. The mouse glides superbly on it. I had Razor Sphex mousing surfaces before that are dope, less than 1mm thick, but they are like sandpaper in comparison.
I actually picked up two mousepads at the same time. I got this one from Corsair that is also really nice...
Corsair MM400 High-Speed Gaming Mouse Mat
The glide is great, but it has a bit of a sharp edge and it's raised slightly higher than the Roccat one.