Single Affiliate Software for managing multiple website

Can anyone recommend an Affiliate Software Package (or Hosted Service) that does a nice job of managing multiple website. We want our Affiliates to be able to use a single affiliate package to pick-up banners for all of our sites. Some of our sites offer a pay per lead, others pay a commission per sale.

We're currently using MyReferer and it simply is not powerful enough for our needs.

Thanks,

...Jim

www.DirectTrack.com is one of the most powerful solutions out there. We have lots of complicated commission structures with all of our affiliate programs that most software can't handel yet DT can. Depending on the # of programs you have, sound like their network version may work for you. You can set up your own mini netwrok, kind of like CJ where all your affs can log in, check stats and grab banners for all of your sites and they can alll have different pay structures.

Our company uses MyAffiliateProgram.com. We have 15 different sites running through the program for our 10 pay per lead programs that our affiliate partners promote. All of our programs are pay per lead, but many do have varying commission rates so they could probably accommodate pay per lead and pay per click programs. Our affiliates can access all of their links for all of our sites from one main location. The program is very easy to use, easy to navigate from an affiliate's side, and very cost effective.
I have also heard that www.directtrack.com is very good as well.