| Yea, you have an NV42, so overclocking should be great on that card.
Push the core clockspeed as high as possible that is stable, it should be 420+Mhz, then push the memory as high as possible.
Download the latest TweaksRUs Xtreme-G drivers from AOAFiles, and they include the "coolbits" overclocking option in the driver advanced settings. Thats the easiest method for a beginner.
__________________ Notebook: Apple Macbook Pro 13" i7 2.7Ghz (3.4Ghz max) 8GB DDR3 1333Mhz (Mac OSX 10.6.7)
Desktop: ASUS Rampage Formula X48
Intel Core 2 Quad Q9450 (Yorkfield) @ 3.60Ghz (Folding SMP Linux)
Running Fedora 15 Linux (GNOME 3) Dual Dell 2407WFP  Drivers, Games, Demos, Mods and Overclocking Tools At AOAFiles |