I do a full format/reinstall 3-4 times a year, and this keeps the computer slim and fast. I also have Ultimate Defrag 2008.
My current setup:
Core 2 Duo E6600 (2 x 2,4ghz)
4GB DDR2 ram
Abit something motherboard
Sapphire Radeon HD4870 512MB
4x 250GB harddrives
22" Samsung
500W Mist
XP Pro SP3
Not the best, but pretty good. SH4 runs at around 100 fps in 1680x1050 with everything on full + 8x FSAA, for comparison.
__________________
|