Ok firstly, some background: I have a mac pro - 2 x 2.66, with 5 GB of RAM as my desktop, running Leopard; I have an internal 500 GB HD, and a 500 GB external that I use for Time Machine. The desktop has about 60 GB of iTunes material, and iPhoto is managing over 65,000 photos (almost 200 GB). This week, TM ran out of space and stopped backing up. There was a perplexing message stating something like, "You have 300 MB of material to backup and there is only 350 MB of space available on the backup volume." Weird, eh? I excluded a bunch of stuff from the Time Machine backups, and it ran fine for a few days and ran out of space again. Thinking I just need more HD space, I'm shopping for a new internal HD - wondering if anyone has recommendations.