never heard of xBar...
Also, you said it uses bangvwm? Does this eliminate mini-view?

Here is what I am looking for: (which I may end up having to code myself)
- mini-view with vwm, in which windows can be dragged accross desktops (already deafult feature of most vwm modules)
- Quick, single, left-click will change to that desktop
- Applications open on different desktops are not shown on others (applications are hid from taskbar if on other desktop)

I am also finding rabidvwm buggy at my high resolution (poor window hiding...parts sometime visible) 1280x1024