Auth.net / PHP pro

Looking for someone very familiar with [login to view URL] and integrating payment forms. DPM, CIM, or AIM... Explain to me pros/cons and tell me best one to use for my needs. Ideally I would like to use a method that doesn't require PCI compliance for my server. Currently have 4-5 different form pages for data collection. Need best [login to view URL] method integrated. Please note: I make no "upfront" payments of any kind. I pay in full upon successful completion. Feel free to see my feedback :) If that's not acceptable, please don't bid.