My really old 70 GB external HDD just crapped on me. I'm looking to nab a Seagate 320 GB from Amazon that looks nice. So I'm wondering...the internal drive on my Mac Mini is only 80 GB, and I'm getting pretty close to filling it. I'm wondering if there is a way I can partition the external drive so that part can be used for data, and part for time machine? Maybe a 160 GB partition for time machine, and 80 GB for data, making the effective data volume 160 GB? Assuming this is possible, would there be any way to "RAID" the data partition and the internal drive on my Mini, so that I don't have to worry about moving around files manually, etc?