Comment Re:RT (Score 3, Informative) 321
RT Rocks. Great software, great community, lots of good extensions available. Our company is a heavy user of RT. We have one instance for external requests and one for internal requests. It was really easy to customize for our exact needs.
Note: I wrote Asset Tracker, an asset tracking (duh) extension to RT. http://code.google.com/p/asset-tracker-4rt/