Any decent one you can recommend for cheap??
Or am I better off buying a separate harddrive and an external case?

I've been seeing lots of bigger capacity HD on fatwallet, but they're all SATA, do external harddrives support SATA??

My only requirement is usb2 connection, 100gig+, and somewhat of a good warranty, that's it. (I don't care fo noises or extremely fast data transfer)