I vote for MM if your going coil overs. The griggs sway bar is nice but it kills the turning radius on the fox. Or atleast it did on mine. And it doesnt clear the thermostat housing. I'll sell mine for cheap if you want to try it. Check the classifieds/suspension sectionIf your using coil overs, which I recommend, get the Maximum Motorsports or Griggs. At this point I would say Griggs so you can get the sway bar that goes with it. It will be expensive but very well worth every penny.
I have a PA racing now and to do it over again I would use the griggs stuff to get around the swaybar issue. Check out the thread about it.