As some of you might remember, my case came with heavy scratches on it and I am calling Dell to get a new case swapped out for this one (if it isn't too late; it's still within the 30 days from invoice date). If they ship me out a new Dim8300, and I swap out the new HD with the one I'm using on my currently scratched 8300, will the BIOS locked serial numbers cause me any headaches with XP? 1. That is, can I use an XP operating system from one 8300 and then transplant it into another case and not have XP complan? I've read that XP uses node locking or similar to some degree. 2. Are there likely going to be subtle changes in the hardware from one (identically configured) 8300 to another that would require a reload of drivers? Or should I just bite the bullet and reconfigure my new 8300 from scratch?