to voerclock the video card, use nTune or RivaTuner.
CPU and other Overclocking you should go into the BIOS
(FSB x Multiplier = GHz)
(450 x 9.5 = 4275 - 4.28 GHz)
your computer will live shorter, but no more then 5 seconds will be taken off the 20 year lifespan.. lol
nothing to worry about, computers from the 80's still work today, technology has only become better since
the most common Overclock for your CPU is 3.6 GHz
FSB should be 379 and a multiplier by 9.5
my video card is overclocked on the stock cooler.. Intels stock coolers are very good too.