I use IDE, but that's only because I can't afford SATA. I have one 60gb and one 160gb IDE equaling 220gb. But with windows etc, I get around 208GB.

With SATA you have the potential to store up to about 2TB which is 2000GB, where as with IDE, the most you can store is now 1TB I think, they brought 500GB disks out aint they?

With IDE you can only have 2 physical HDDs, but with SATA I think you can have.. is it 4?