Been using AutoPatcher since the end of last year and is is a VERY handy application to have. Especially on slow conenctions. If I reinstall windows I can just update without having to re download everything.
Currently they are offering,
Windows something else
And hopefully in the next few months they are going to start on all of the office versions along with Vista.
As far as SP3 goes there are now a few rumours goign around on respected sites that SP3 will NOT be coming at all. Cancelled because they want everyone to go onto Vista.