help desk system

Guidance required

[kushaaal]

Greetings,
I am looking for a help desk ticketing system which has can be run from my server, have option of multiple operators, and has extensive MIS and statistical interface. And offcourse preferrably free or towards lower side.
Can somebody tell me which one will suite me?
Regards,

[kushaaal]

I have seen cerebrus and Kayako, but found both a little pricy for me. ANy other alternative?

[pmkpmk]

I heard of the "Open source Ticket Request System [otrs.org]" but haven't seen it in action so far.

[kushaaal]

I'll give it a try and let others know about this