Voice-O-Matic is quite powerful on its own.
The lipsync pack is useful if the other plugins will benefit you. I quite like Pose-O-Matic, but there are some scripts floating around that peform a similar function.
Morph-O-Matic has some powerful functions if you're big on morphing. I do like the tools to assist with material morphing, and the ability to blend morphs and create a new morph target from that.
It's been awhile since I've used these plugins. My current setup involves BonyFace.
http://www.scriptattack.com/maxscripts/bonyface/index_eng.html
Alias/Wavefront Maya 3 -> Discreet 3DS Max 4 -> ...
Win7 Pro 64
EVGA Classified Super Record 2
Dual Xeon Hexa-Core, 48GB RAM
GTX 780 x 2
Corona Renderer, mental Ray