I use a Belkin wireless comfort mouse. You can get them on eBay for about £8
I find it very good for gaming and design, the only problem is it eats batteries like crazy.
However, I have 4 rechargeable batteries and usb battery charger (cost £2) - problem solved!
I think any number of mouses will do the job and meter jumps happen to just about everyone. Using a dif mouse I once lost a brand new max ball on hole 18 on st. A hitting the water hazard about 30 ft in front of the tee.