Vista - Dual Boot

Hi
I would like to Dual Boot Windows Home Server with a copy of Vista Home
Premium. The main role of the machine will be as a home server but I need a
back up media centre in emergencies just to handle the recording of external
media. The target machine is Intel dual core with three disc drives. There
is an 80 meg drive partitioned two ways which I expect to use for the two
OS. 40 meg should easiy handle Vista and a few days of my wife's favourtie
TV programs. Then there are 2X400 Sata which will participate in the home
server role

I note that on initial load Home Server claims all the disks it finds, but
if installed with the reload option it just refreshes the OS. Is that the
way to proceed.

I would be grateful for some advice if this is feasible and the sequence to
install the systems
Roger Stenson