In my case, I think I'm going to go with a small HDD (120 GB) and get a big, fast external drive for my data (3.5" 500GB 7200 RPM, in one of those matching enclosures from OWC). I'm assuming that being connected with FW 800 on a six inch cable will be pretty darn fast.
Which leads to another question. I'll have the OS on the built-in drive and the data (mostly photos, but also iTunes music & podcasts, etc) on the external. But should I put the aps on the internal or the external?
I've always been lead to believe there is a performance advantage to having aps and data on separate drives (the drives can be working independently at full speed simultaneously, as opposed to task-switching if everything's on the same drive). However, which of the two do you think would be best, from a performance point of view?
(A) OS and Aps on slower internal drive (direct SATA connection) and data on FW800 external drive.
(B) OS on slower internal drive (direct SATA connection) and both aps and data on FW800 external drive.
Or is this all just a bunch of hair-splitting? 🙂