This is recommended and critical updates as well as WHQL drivers most of which are pre SP1. I list them here in case one wants to see what the bulk of SP1 entails. Also if for some reason one does not want to install SP1 you can pick and chose from the list. However it is recommended that SP1 be installed. The drivers are WHQL to the best of my knowledge, and they are coming from the M$ site......
Recommended, Critical and Driver WHQL updates