If you have a valid .edu address you can get the Win 8 upgrade pro until 23:59PM PST 8-25-13 for $39.99 at newegg. Use the link that pierced mikey gave and then use the Promo code:
I am ordering one right now because at that price who can't get it? I think I am going to install Win 8 professional on my Laptop so I can use all 32gig of ram that I can put on that sucker. The Win7 home that came on it won't access above 16.
Edit: Ordered one... ;) $39.99 no tax and free shipping...
Thanks guys for the heads up.there is a heap of ebay sellers down here with the student packs.round the $70 mark...