I'd rather not cuz i still do all of the stuff i did before on my pc , like Viewing youtube etc. so id rather change something on the Miner

Thanks i already overclocked the fan but its still not enough...

So I wanted to earn some bitcoins and i was wondering what is the flag for changing the limit for GPU and CPU ? i currently have
GPU - ATI Radeon 4870
CPU - Athlon x4 635
When i try running it normally it raises temp. and my fans cant keep up ...
Thanks ! Jakub

Guys , Can someone tell me the right flag for reducing my cpu and gpu to use only 70% of its cabality ? i think my rig will overheat if i let it running on 100% im using ATI Radeon 4870 and   athlon II x4 635

I think its too hot , i have 62oC and i dont risk it and sometimes stop mining and i think deepbit is good , fees are small but so many people mine that basically u will still earn more on a long run ..