i need a new gaming set and have no idea about them. they both need to be wireless, or have 4 m long cables. i would prefer it if the usb receivors (assuing they are usb) arent too big. i will use it for gaming at 1900X1200 and want to spend as little as possible. im not bothered about it having loads of macros or extra buttons or anything, just something responsive and not too small. thanks in advance