You know when you see something on TV and they say "no purchase necessary"? Well this doesn't apply for this offer : )
Anyhow today Microsoft just announced a free upgrade coupons for those who purchase Office 2003 between Oct. 26, 2006 and Feb. 28, 2007. For more info please see this article: Microsoft Offers Free Office 2007 Upgrades. From the article:
Customers who buy a PC in the Oct. 26, 2006 - March 15, 2007 time period with Office 2003 pre-installed on the machine will receive a coupon good for a free upgrade to a similar edition of Office 2007, Microsoft said Tuesday during a conference call with reporters and financial analysts. Users who purchase the full retail version of Office 2003 between Oct. 26, 2006 and Feb. 28, 2007 will also receive a coupon.
There is also a similar program for Windows Vista: Microsoft offers Vista upgrade discounts. Enjoy & yes purchase is necessary to get this offer.