Nice post
My only criticism is to remove the comment about klite and/or any codec pack. Generally speaking 98% of whats in them is not needed and they usually break your system. Typically we recommend only one mpeg2 codec and ffdshow for the vast majority of others. In the rare circumstance that you need extra (support for matroska etc), then you should install those individually as required (so you know what broke it when it breaks).
Other than that. Top pointers... Rep points for you
Have also made it sticky for all the new Vista builders out there.
Cheers,
Arkay.