> Two Dual-Core Xeon 3 GHz CPUs
> 16 GB of RAM
> (addon) PCIe Video Card, mid/low range geforce I believe
> Sufficient SAS driven disk space.
Exact model numbers would help for the Xeons and the GeForce. Both of those brands cover a wide, wide range of generations and capabilies. 3 GHz means it's at least the P4-based generation (which wouldn't be ideal for MAME but if you don't play 3D games it'd work).