Your setup is great

In fact I tried many configurations of Athlon/ddr or sdr, P3 and P4 using pricewatch. IMHO the best price performance was:

-P3 1.13GHz 512KB cache (Tualatin) & HSF (retail box) $259
-Abit ST6 (noraid) $107
-Corsair PC150 256MB $55
Total cost with shipping is $436

No need of new Case/PSU or fans or large HSF.
The CPU dissipates only 29Watts !!!
The performance should be close to 1.2GHzTbird/ddr when playing games.
Probably I will be able to get 1.36GHz (8.5x160) eazy
Thanks for the sugestion.