OK, they never banned by IP address. IP address is the easiest thing to change, so they wouldn't even bother about it.
If your ban is GUID, but you don't want to risk a HW ban once your replace CDkeys and test because you simply don't know, there is a simple test you can do. Download AA (America's Army). Free game with PB. And try to play it. If PB kicks you, you are not just GUID, but HW banned.
If you are hardware banned, you do NOT need to replace every single piece of hardware. PB does NOT "choose" what hardware to ban. It bans:
1. Serial number (not volume) of your first 10 hard drives it finds.
2. You MAC address on your NIC card.
As for spoofing your HD serial, there's no public undetected spoofers as of now. I downloaded the program [DOA] Programmer_One posted. It's clean. I scanned it. But I haven't tested it yet.
Spoofing your MAC address is easy. I posted how to do it over here
http://www.mafiaowns.com/Forum/showthread.php?t=2339Oh, and you do NOT have to create a new account. PunkBuster does NOT ban accounts because they do NOT have the access.