hi, i've just seen i can get the official windows 7 professional version in my uni's msdn store for free. it's not an RC version or some shit. My question is, Is it worth it? right now I am running Vista, never installed the friggin RC to test what's new and stuff. anyone can give some oppinions? right now i am virus-free and stuff, but my disc is full of shit, i might think about cleaning up a bit.