Thanks again Henrik for your time and expertise I really appreciate your input.

I guess the anti-phase should be ok and looking at the datasheet for the 16F690 it looks pretty simple to implement so there is no reason i can not change to that chip. It even has some other cool stuff that might be of use too!

The h-bridge design I am looking at using is the one here http://www.pocketmagic.net/?p=508 but using TIP35/6 for some extra current allowance in my design.