looking for the most reputable CPA affiliate programs

[Simon]

I've been waiting all month for you to show up in this thread, Chop. It just seemed like you must have exactly what he was looking for.

Unless of course we have no idea what he means.

Hmm... maybe what he means is Cost Per Action, which Google was supposed to be testing last month.

From Pay Per Lead section on Wikipedia

Pay-Per-Lead (CPA or CPL)
Cost-Per-Action or Cost-Per-Acquisition (CPA), Cost-per-Lead (CPL). Advertiser pays Publisher $x.xx in commission for every visitor that was referred by the publisher to the Advertiser (Website) and performs a desired action, such as Filling out a Form, Creating an Account or Signing up for a Newsletter. This compensation model is very popular with online services from ISP's, Cell Phone Providers, Banks (Loans, Mortgages, Credit Cards) and Subscription Services.