What would you do with this old setup?

[brandonwh64]

Turn it into a router like Sinzia said. Hands down the fastest router you could ever use if pared with a dual slot PCI Gig card.

 

[bmaverick]

Yes, I too would make the machine into a file server. Just place a few good large drives into it and a USB hub that can support 16Gb or more cards or sticks.

This way, forget placing your stuff on the cloud, you have your own machine.

 

[Krazy Owl]

From your earlier reply, Owl. Here's basically what I was talking about
http://support.microsoft.com/kb/304040

Also, shouldn't need a monitor connected as if you wish to maintain it you can use a free version of teamviewer
www.teamviewer.com

EDIT:

Also a good example of a VM, I can't run native Ubuntu and keep my wifi connectivity so I am limited to using a virtual machine to write/build my code for my android kernels.

ok thank you. I'm not a code writer and I barely can understand the ubuntu because of these Synaptics package I can't even delete netiher understand.