I am working on some stuff with WHS that would require me to have access to the bios and POST screens on my WHS, but unfortunately there is no video output on the HP machines.

Thankfully, cakalapati has started making cables that connect into a port inside the HPs.

http://www.mediasmartserver.net/forums/viewtopic.php?f=6&t=1290

Nice!  No soldering!