Ok just seen one of your site listed there have pretty the same parts I just listed. So my second question would be do I have to have a 5v regulator. The arduino can run off of 9v so didn't know if I could do the same with the mega168 standalone or if I would have to have the 5v regulator. I'm planning on having sensor, servos, and other stuff connected but will have most with there own power supply.