[TriLUG] Server Check-Out / In-Use-Register software

[bp]

Ok, I don't know what to call this stuff but we are looking for a free / 
GPL / GNU / Open source application that we can use in our team to keep 
up with who is using a test machine.  Our team is spread out between CA, 
RTP, Taiwan & India and I need to setup a web app that someone can log 
in to and reserve a given machine for a given number of days.  Anyone 
know what to Google for or if there is something out there like this in 
the Open Source community?  Or should I just start coding now...

Thanks,  bp