I'm thinking of adding a second HD to my Mac for spare storage since they are so cheap now, but I am worried about any potential drive size limitation. I searched the forums and found several threads that touched on the subject but I did not really find a definitive answer. Searching Apple Support site yielded even less specific information. I have a Dual 1GHz G4 (FireWire 400, USB 1, Gigabit Ethernet) running OS 10.3.7. 1. Is there a size limit on the drive I can install? I have seen references to a 137GB limit. 2. If there is such a limit, would a larger drive (say, 160 or 250 MB) work if partitioned such that all partitions < limit? I was thinking along the lines of maybe a Seagate 160GB Ultra ATA drive, or something similar. Thanks in advance for any info.