I have a 600-mhz g3 iMac that I'm going to be upgrading (max ram, larger (& new) hard drive), and I've recently become interested in replacing the slot-load internal cd-rw drive with one that can also play/burn dvds. The only drive that I've found that would definitely work is this one from MCE, but it's fairly expensive. If I were limited to this drive I would opt for an external, but I'd like to have an internal drive if possible. Now, I haven't yet looked inside of the imac to see what sort of drive it has behind all the plastic, but can I just get a slot-load dvd/rw drive that isn't being advertised (and priced) as a "SuperDrive upgrade for the slot-loading iMac G3"? And if so, are there any internal drives that don't play well with the finder/i-Apps? I would want to have a drive that would be fully compatible with 10.3.5/10.4. Any suggestions?