when I was at uni a few years ago, departments teaching technical subjects had completely free access to windows and other microsoft products (well, not free, but the uni stumped up a one off cost for the dept.), under the MSDNAA scheme. Worth checking with the uni IT team if they have this set up.
you can even continue to use the keys issued after leaving uni, just can't get new keys!
He checked and they don't: http://forums.overclockers.co.uk/showpost.php?p=22714601&postcount=13
They also renamed the scheme Dreamspark now.