Or if you don't want to wait while still taking advantage of the $260 coupon (RH23N?MWL3KF1C), I found out that if you follow Brad's steps above you can customize the system configuration by clicking on the "Adjust System" link when the laptop is in your cart. To upgrade to the Athlon TK-53 processors, it's an extra $50. And what I like about this is that you can customize other components while still getting the $260 off. As of this post, it seems the "bqdaiad" is for a Vostro 1000 with XP only as Vista is not offered as an alternate OS. That's the only difference I've seen.