My thoughts, in an itemized list:
1) What do you want to achieve with the movers?
2) Given a standard
theatre situation (repositionable specials, some animation effects/rotating gobos, some
gobo washes), I'd say go for
yoke fixtures because none of the mirror fixtures available have the
zoom range or effects package to do
theatre stuff. And with that, get a
fixture that has
zoom - at least out to 30 degrees - so that you can
cover more
stage area when needed. Also, get something that has
CMY mixing. Color wheels are far too limiting for
theatre if you have the option of
CMY.
3) There is no MAC750 - you probably mean MAC700. Wonderful lights, great
zoom range, good
gobo and effects package for
theatre. Probably the most versatile mover you can put in your rig.
4) If you really, really need
shutter beam control, the MAC2000 Performance is what you need. Both the MAC700 and the MAC2K Performance have animation wheels, which can be useful for
theatre. Or if that's too much, a VL1000TSD which many houses carry as well.