[arod in Texas]

I am trying to decide on what DSP processor to add to my system. I don't care about having Logic 7 which I know the MS8 has but I do want autotune. My current system is Morel Dotech Ovation in the front with Audio System Ax-08 under seats and a JL XD600/6 running it all with Technic harness. I know about bit one but it is out of budget. Any recommendations that are easy DIY as far as tuning?