NoMachine Remote Desktop
I just came across a remote desktop program called NoMachine ( www.nomachine.com ). They have a free version as well as a paid enterprise version. The free version is adequate for "in house" helpdesk purposes, which is what I have been playing with. From what I have seen so far I like it a lot better than TightVNC. I just thought I would mention it in case you weren't aware of it. It would be a great addition to the package library if you decide to add it.