Well said. I'm sick of people lamenting over how Vista uses up all their available memory, yada, yada. I'd say if those people want to install and use Vista (not play with it), then try to understand how memory management is implemented in Vista instead of simply criticising it based on what they see on the surface of things.
I'm also against many arguments on backwards compatibility. I'd prefer systems to continue progressing forward rather than wasting too much development time on backwards compatibility and there's a whole range of reasons why Vista is designed this way. Mac OSX had poor backwards compatibility, but no one complains because it's not Microsoft and it's probably too uncool to diss a Mac.

Nope, the MSDN copy of Vista Business should only be valid for one PC. I've tried activating it on a separate PC and it won't work until I call Microsoft.
MSDN licence keys are only valid for each student and cannot be redistributed to any 3rd party. You would be violating terms of the EULA and MS has been cracking down hard.

It's not just UTAR. You have to ask if your uni is part of the MSDNAA. If it is, it would have access to Microsoft product licence keys for distribution.

What do you mean neither OEM nor Retail? If you buy Vista, it has to be one of these editions (MSDN, Academic, Technical Previews, etc. have licences resembling OEM copies).
Anyway, to answer your query, you won't be ask to reactivate if the reinstallation is performed on the same motherboard and hard disk (even when reformatted). Vista ties your activation key to your motherboard's BIOS ID or something if I remember. I have tested this too and it is indeed true that a motherboard/BIOS switch will result in you having to reactivate your copy again.

Reactivation is easy. Just call up the 24 hour toll free number based in India and give them the activation ID. They will reissue you a new one. It is entirely confidential.