Today is the last day to download Windows 8 Pro (upgrade version) for $40.
Still on the fence about whether or not to make the jump to Windows 8? We feel your pain, but keep in mind that today is the deadline to take advantage of Microsoft's discounted upgrade offer. After today, the Windows 8 Pro upgrade will jump in price from $40 all the way to $200. There's still time to dive in at the discounted rated, which buys you a digital copy, or for $70 you can receive Windows 8 Pro on DVD.
It's possible that Microsoft could end up extending the promotion, though if that's the plan, they've done a good job of keeping it a secret. Microsoft might also decide to run a different kind of a deal, like a discounted famiily pack, but again none of this is written in stone, or even rumored at this point.
Alternately, if you purchased a Windows 7 PC after June 2, 2012, you're eligible for a $15 Windows 8 upgrade, redeemable until February 28, 2013.