switching out hardware, should I deauthorize my computer for itunes?

[five04]

i'm planning on formatting my pc pretty soon and reinstalling windows. i've currently got an 80 gig hard drive where windows is installed and then a 160 gig which is used for storage. i'm gonna take the 80 gig out and put it into another computer and partition the 160 gig into 2 partitions. with this being said, should i deauthorize my pc before i do this so itunes doesn't get confused or is this too small of a change to affect it? thanks.

[RBMaraman]

Yes, you should definitely deauthorize.

[GeeYouEye]

Unless you keep the MAC address and serial number (IIRC), you need to deauthorize.

[saabmp3]

What serial number would he be keeping? And does this mean I can take a laptop with a PCMCIA NIC and just plug it into whatever computer I want to listen to music on and it'll automatically be authorized?

BEN