Left column on select pages without having to put code in header and footer?

[cmiller1014]

I have done some searching but havent found exactly what I am looking for. I was hoping maybe I missed it and someone could point me in the right direction.

What I want to be able to do is selectively put a left column ad bar on pages, but I still want the navbar to span the whole width of the page.

For example, I would like one on forumhome, showthread, forumdisplay, but not on pages like the user cp, etc. Just the high traffic areas really.

Any help would be much appreciated!