I just pre-ordered mine, and I'm totally excited about it! I had to tell you guys.
As of yesterday, Microsoft is offering Windows 7 Home Premium Upgrade for students at $30! All you need is a valid university e-mail address.
It is available until January, and those who purchase it prior to the 10/22/09 release will receive an e-mail on that date with the download information. Make sure you know whether you'll need the 32 or 64 bit before ordering.
Also, Microsoft offers a similar deal for Office Ultimate 2007 for $60. I got it over a year ago and it has helped my school experience immensely. It's called The Ultimate Steal and works in the same manner- order using your university e-mail and you will receive an e-mail with a link for the product.
For both, you have the option of ordering a disk.
Hope this info helps you guys out!