I've been sing Neat Video on noisy video for quite a while and it's been a life saver. I don't need it as much now we're shooting DSLRs but with older 1/3" video cameras it could make a huge difference!
It really is worth going through the effort of making some camera profiles. I did it for the HMC151 but haven't got around to it with the DSLRs because we haven't needed it so much. Once the wedding season really kicks in I'm sure I'll find the need for it again because it saves a lot of time trying to find good sample areas and if you know the gain level (or ISO on the DSLRs) then you can have a pre-tuned profile ready to go.
I really can't speak highly enough of this little program, though be sure not to over use it because you can easily get plastic looking footage
