I have an EZQuest Cobra+ 120GB and it's great. I use it as my boot drive (OS 10.2.8) since the 10GB drive in my iBook is too small to be an effective boot drive. Also, the EZQuest seems to run faster than my internal drive. The only complaint/annoyance I have with the EZQuest is the noise the fan makes when I first start it up - it "whines" for a minute or two, but then runs very quietly (if I would never turn the drive off, it would be a "perfect" drive). I own 3 EZQuest drives (Cobra+ slim - over 3 years old and still works perfectly, but now is used just to store a cloned back-up of my main partition; EZQuest Cobra+ CD/RW, 52x - super fast and totally reliable). The Cobra+ also comes with great software - Retrospect and SpeedTools (great for making perfect clones).
I haven't upgraded to Panther because of the problems with firewire drives. Does anyone know if it's safe to upgrade on a firewire 400 drive, especially if the fw drive is the boot drive? If it's not 100% safe, I'll wait until I've saved up enough money for a Mac Mini because I wouldn't want to lose all the data on my main drive(s).
Claire