Can you help me with videoconferencing?

Certainly. eRSA supports (and uses!) two applications in this area:
1) EVO http://evo.arcs.org.au
2) Access Grid http://accessgrid.org.au
Both applications allow simple face-to-face conversation with audio and video, but have extended functionality such as shared desktop, shared whiteboard, file transfer, text chat, multiple video/camera sources, and more.
It also is possible to hold meetings that are accessible simultaneously both to EVO and Access Grid users (so-called bridged meetings).
See the eRSA pages on EVO and Access Grid, and also for information on eRSA's Meeting Room. See here for the relevant booking form if you would like to make use of our video collaboration facilities.
eRSA provides Service Desk support to Australian research users of these tools, and can advise on getting the applications running as well as hardware requirements for various levels of installations.
Please contact the Service Desk for initial inquiries as well as user support.