Vista Remote Access

Although the free VNC still hasn't been updated to support Vista, the folks at LogMeIn have a free product that gives an acceptable alternative (in my opinion).
The disadvantages are:

• Proxy through LogMeIn
• Web-based clients (Java, ActiveX and 'plain HTML') don't feel as fast

Advantages (in addition to remote control of Vista):

• Screen scaling
• better security/password support than VNC authentication