Well I got a 160 GB for under $100 and since i live rather near to the distributer I would be charged extra if I didn't choose two day shipping. (funny to be charged extra to wait longer for your package!
) I got the official part from HP rather than one of the other places out there that carry the part since they markup by at least 300% which is rediculous for a part that at cost is likely $4. (HP charges $40) Anyhow I had no problems installing it into my notebook and it didn't limit me on the size I could insert. Everything worked out fine. I'd hold off on the 200 GB right now since it's a newer comodoty and still twice the cost of the 160 GB HD and climbing.