My Virtual PC setup:
Ubuntu 12.04 LTS (all updates) and fog 0.32
~I uninstalled all the bloat stuff from Ubuntu and then installed Flash and Java6JDK. Otherwise nothing else is on machine except system packages and FOG.~
Running in HyperV on windows server 2008 R2 Standard
1 vCPU
512 MB ram
120GB HDD (I will only have 3 images total)