If you’re buying a new PC or have bought one in the past 6 months with Windows Vista Business, make sure to purchase Microsoft Software Assurance along with it. Why? Because along with the support, services, training, and tools, you’ll also get Windows 7 as an included upgrade. You won’t get this deal if you wait until Windows 7 is shipping. And, to make your decision even easier, we’re currently offering a 15% discount on Software Assurance purchases.

*Stipulations/Circumstances: "If your qualifying PCs are covered by Software Assurance when Windows 7 is released, then you automatically get the rights to deploy Windows 7 Enterprise to those PCs without an additional license fee (media fulfillment fees may apply). Discount offer extends to any new PC purchased with Windows Vista Business or Windows XP Professional between 9/1/08 and 6/1/09. Maximum 125 PCs per customer. Purchase of Microsoft Software Assurance requires a pre-paid 2-year agreement."

More info: Windows 7 for $77 | Microsoft Software Assurance Program