Okay, so I was using my homemade external drive I cobbeled together from an old IDE drive and a nice but relatively inexpensive enclosure, and I got the "infamous" clicking of it dying. I was (fortunately) lucky enough to get all my data off before it finally bit the dust and now i'm in the market for a new drive. I see that Newegg has some nice 3.5" IDE drives, 80GB for ~$40 seems like a great deal to me. my questions are.... what are the differences between IDE Ultra 100 and 133??? Also, I was looking at an 80GB, 7200RPM WD Caviar for $40, and the same model for $45. My question is, would a 8MB cache as opposed to a 2MB cache for an external drive be worth the extra money? If I can use IDE Ultra 133 in an IDE enclosure, I would rather spend the money on this Hitachi drive, because it seems like the better value. I'm not looking to spend much, seeing as I got the original 30GB drive for free and spent $30 on an enclosure, but any other options are greatly appreciated! If I can spend under $50, seeing the options already out there, it would be great! EDIT: oh, and size doesn't matter as much, but i'd look foward to maybe doing the occasional backup on it if i had the option, so i'd have a bootable disk image, maybe install Ubuntu, and get the most bang for my buck Thanks for all your help guys!