Want to broadcast what I see on my computer screen

For training purposes my boss needs to let people in remote offices see what she's doing on her computer screen. Remote people don't need control, they just need to see what's going on. The perfect solution is letting them go to a website that we host (we have several) and let them login to a conference session. So, while she's on the phone telling people how to do something, then she can actually show them how to do something. We're on a Windows 2000 Server network. We also have a Server 2003 server which can be implemented. We run Terminal Services (I really don't want to use Terminal Services for this) as well. Any ideas and especially solutions would be appreciated! Thanks!