Call queuing CUCM 7 without call center appliance

We have a CUCM7 system that we'd like to setup call queuing on a couple main numbers (we may upgrade to 8.x soon).  We've looked at Cisco call center appliance, but it's fairly expensive and has tons of features we don't need.  We basically just need calls to come in to main numbers that already goes to a Unity attendant, that when a choice is made it rings on a couple phones, if not answered within X seconds we want it to dump into a queue for X seconds, then probably go to a hunt group of other phones after.

Hopefully that makes sense, I'm not a VOIP guy so I may have worded it incorrectly and apologize for my ignorance.  But basically I'm looking at a 70k+ quote for an appliance that I'm not sure we need.  I have to imagine there's either some sort of trick to do this already or there's a cheaper software solution.  As I mentioned we're not really looking for the full blown call center experience, we're talking under 50 calls a day.  

Right now I"m looking at
http://www.netcraftsmen.net/component/content/article/70-unified-communications/699-basic-queuing-in-cucm-callmanager-without-using-uccx.html to see if that is what  we need to do.  So if anyone has any suggestions for other software (something that runs on a vm would be great) or the right way to go about this it would be greatly appreciated.