I've been spec'ing out a new notebook. I notice that the 160 gb drives are all 5400, but the smaller 100gb drives are 7200. Also all the S-ata drives appear to be sata 150 rather than sata 300. I'd like a sense of what the real world performance difference between 5400 and 7200 and 150 vs 300 might be. I would guess that over the next 6 months or so we'll see 160gb 7200/300.
My plan would be to get a card adaptor and add a second external sata for backup and as a PS scratch disk.