The stuff I put in the box would take it to 1gb of RAM with 64mb of Video. I didn't put in an AGP card; I put in a schmo 32bit PCI video card. This board doesn't have PCI-Express slots and I didn't have an AGP card with me.
WinXP ran fine on this box with 512mb of RAM and hardly any dedicated video memory at 1280x1024, so I kind of assumed this 'dedicated server' install would be lighter weight... I suppose some CPU features might be lighter, but a dedicated proxy/transparent bridge box being unable to cache data to disk when physical RAM is low seems unusual.
Regardless, I'll see what happens tomorrow. I now get an error about too many partitions on the disk, so I'll pull out the drive and delete the partitions on my Windows box, then see if my RAM is different speeds and maybe that is a problem with this OS. (It runs XP fine.)