hello, I'm in the market for hard drives. I usually just go for the cheapest 7200 portable drive but now I'm at the point where I think I want to start using my hardware more efficiently. I was looking into daisy chaining. found out you can do up to 36 chains! wow! but then I discovered FireWire hubs. and got me thinking. if I chain with a hub I need an ac adaptor. if I don't use the adaptor, then there is no ac. will the electricity draw be the same? is my Mac going to start feeling it if I don't use a hub? additionally, if anyone knows of cheap 1 or 2tb thunderbolt 2.5" hard drives I'd probably daisy chain those.. so yeah, you guys and gals have been the best community so far, got any advice?