Looks like there might be some problems with the voices synching up with the mouth movements (especially towards the end). NG has some nice pre-loaders, which would also help the synch, but take a look around the animation part of the BBS, I've heard there's a fix of sorts to keep the A and V tight.
VicariousE
Welcome to Newgrounds, really solid work so far!
NSBenz
Many thanks. The videos are admittedly crude but quickly getting better. New videos should be finished soon.