Since I got my Mac mini in November I've been having problems with my Logitech G500 being very 'laggy'. I don't know if this is down to the fact that it is across 5m worth of USB powered hubs and so on or if it is a problem with OS X. It does work fine when I plug it straight in to the USB 3.0 port on the back of the mini but even when it is across the hubs it works fine on Windows 7.
So I found a fabulous solution called Smooth Mouse. If you experience lag on your mouse you can download it here:
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