Which adsense mod to choose?

[Magle]

Hi, I'm trying to figure out and decide which mod for placing google adsense ads on my forum (see sig).

I think the best placement would be below the navbar as close to the content as possible.

Also, the ads should only show up on pages with content and of course only on pages that can be accesed by guests/unregistered users.

If possible I would like to place ads with diffferent "adsense channels" on a per forum basis (so that all posts "belonging" to a forum will be served that forum's code)

Which would be the best mod for me to choose?
Thanks in advance for any help