I use Ideal Admin in a k-12 school district having over 2000 computers and 5000+ users.  This program has made my job so much easier.  I believe that I have saved the cost of the program many times over just in gas and travel time between 12 buildings.  I know there are free products to be found to access clients remotely, but none offer the security and functionality found in Ideal Admin.  It is well worth the money. 

Let me not forget the quick response I get from the tech support.  Good job!