.avi is a container, Divx is a codec, most likely used with an .avi container.
.wmv is a container for Microsofts' Windows Media codecs, you probably need Flip4Mac to properly read them on your Mac.
Toast should be able to burn most of those video files to a video DVD though, no need for visualHub then.
Burn might do it too. Have a try.
EDIT: Have you looked for already existing threads about this via MRoogle?