Recommendations for PPC Affiliate Tracking Software

I’m looking for a tool to track which ads and which keywords are the most profitable for PPC campaigns for affiliate marketing.
I’ve been using Prosper/Tracking202, and I’m not really impressed.
I wanted to try Hlola.com but I put in a couple questions to their support 3 days ago and haven’t received a response… = FAIL.
So looking for other alternatives?
Don’t mind paying for a good solution.
Thx

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