We rarely feature the same deal twice in a row, but this is a special case. We wrote a couple of weeks back that Microsoft is running a promotion whereby upgrade editions of Windows 7 can be pre-ordered for as little as $50.
Well, that promotion ends tomorrow.
As one of the e-tailers participating in the promotion, Newegg still offers the Windows 7 Home Premium upgrade for $49.99 shipped and the Windows 7 Professional upgrade for $99.99 shipped. Once the promotion ends, those upgrades will cost $119.99 and $199.99, respectively. So, you know, don't wait around if you're planning to make the switch when the new OS comes out in October.
Again, these upgrades require a legit copy of either Windows XP or Windows Vista. You can grab any edition you want, though, regardless of which version of XP or Vista you're running.
If you've already gotten the upgrade (or if you just have other plans) there are other interesting deals lurking around. Race Driver GRID is available for $14.99 this weekend only on Valve's Steam online store—that's 50% off.