Replying to Ski choice help

im a blue mountain man fresh from the east moved to calgary to experience the rockies and "real snow/skiing"...anyways im big on park spending about 80% of my time in it and when i wasn't in the park i was hiking the sides of hills lookin for cool drop ins whatever to spin off of so to get down to the point im lookin into back country jumps cliffs and powder/tree skiing as my new interest maybe with a bit of a park slant and i was wondering what would perform best for such skiing cause my dumonts just aint gonna cut it nemore...ARG, EP Pro, S7 is what ive narrowed my choices down to..i ski sunshine village and i guess have a pretty fast aggressive style im 5'11 147 pounds.....any input would be cool seeing as im new to NS and new to powder and everything i kno comes from watchin movies never actually demoed a ski wider then 90mm..i kno these are elite skis for advanced powder skiers but i can learn!  Thanks, a nub