Thanks for the info. But I just went ahead and got the recovery disk from HP. I wasn't really been able to find what I was looking for.
Kemasa's suggestion is a good one if you do not want to do a fresh install of you OS on your new HD. When you buy your new HD, it may come (or you can likely download online for free) a disk utility that actually lets you completely clone the contents of your old drive to the new one. I know maxtor and seagate both have their own utilities. This way you will not have to re-install programs and transfer data.
Something to keep in mind if you do choose to do a fresh install from the recovery disks you are getting from HP: Make sure you have the jumpers set correctly on your drives so that the BIOS is seeing your new drive as the first HD. Or if you don't want to fiddle with that, just physically remove your old drive while you are installing the OS. That way your new OS will not be relying on boot files located on your old HD and you won't have any problems booting up when you decide to toss it.
I made the mistake once of not switching jumper/bios settings before installing XP on a new HD and after removing the old HD i was left with a whole slew of problems with incorrect drive letters/boot files missing etc. Hope to save you some trouble!
Edited by ninja88, 17 August 2010 - 04:10 AM.