tarmosaidthis
Comment and replies on AntiRSI:
If you're having trouble with AntiRSI (Leopard compatibility, bringing apps to front, etc.) try my version at http://web.sabi.net/nriley/software/#antirsi - it fixes these problems and more.
Comment and replies on Time Out:
Worked for me on Leopard, but I actually preferred AntiRSI over Time Out (tested both for a day).
Yep, works like a charm. Detects idle moments automatically.