dunno about the 760's and duron.
the case sucks. i had one. first off, let me tell you a little about the cd-rom drive. it's bad. they're poorly manufactured and break. secondly, the ps is 200 watts. not very much. thirdly, taking off the cover panel all the time is a big pain and when it's off the case isn't nearly so pretty (he took the picture with it on for a reason). next, take a look at the housing for the cd-rom. if you ever want to replace the drive you're f*cked. it's a modified drive so it'll fit that oh-so-pretty case and different drives won't fit. come to think of it, that case has the old gateway logo from more than 2 years ago, so the ps might not even be 200 watts. you should ask the seller what it is if you still want to go through with it even after all i've said. lastly, i can't remember if there were places to put extra case fans inside. if that's the case, then you'd have to cut through the metal to add one. you certainly couldn't add one in the front since there are no intake slits in the front of the casing. it's a good looking case, but it's not functional for anything but a gateway system. that's why they don't make it any more and now use cases with no housing over the drives.