Okay. I need a 1TB, Firewire 800 drive and I think I have settled on Fantom's G-Force drives because of all the favorable reviews around here. 1. There is this fat one with a fan and 32MB data cache for $260... 2. There is this fat one with a fan and 16MB data cache for $325... (less for more?) 3. There is this skinny one without a fan and 16MB cache for $280... I sort of like #3 but I'm worried about it not having a fan. Drives run hot and I live where it can get hot. #1 seems good because of the fan and more cache, yet #2 costs more. Why? I'm confused.