Question: VNC

Hi all! I'm new to SuSE and I'm loving it! At work I want to be able to VNC into my machine at home. However, the only ports that are open to the outside world are 80 and 22. I would like to keep port 22 reserved for ssh and make port 80 reserved for VNC connections. My question is it possible to set up a secure connection to my machine at home via VNC on port 80? If so how would one set up VNC to connect via a secure connection on port 80? Thanks in advance! Jay