do not get invaders... with your height and weight they'll be a) too small and b) way too soft. if money isn't an issue, you can't go wrong with the armada AR6s. line chronics will be good, so will rossi scratch ghettos, or something with a similar medium flex. i'm gonna say fujatives will be too soft for your size too.
and since your 6'4'', definitely get the longest size of whatever you get. something 181, or 179 if its k2. don't go with the "shorter skis are better for beginners" theory- the sooner you get used to longer skis the more comfortable you'll feel.