So due to a lack of hard drive space I found myself purchasing a SATA drive today, I was under the impression that SATA should be noticibly faster then ATA/100, but sure enough I ghosted my original boot drive the ata/100 and imaged it onto my SATA/150 and sure enough the system runs like crap.
Maybe I effed something up ghost 9.0 kinda sucks, but I really would had figured I'd get a performance gain not a loss out of SATA
Asus K8N-E nforce3 w/ athlon64 processor +3000 768k on die cashe
1 gig hyperX ram
ATI Radeon x850 XT pro
100 gig EIDE ATA-100 8meg cashe
200 gig SATA-150 8meg cashe primary boot dev.