You should go to your local shop and see what they have for sale it's the good time and you support your local shop. Also local shops will often hook you up if you buy a whole setup wich i supose you will. So yeah go to a local shop and support them!
so how big should my ski's be? I'm about 5'10. I'm not entirely sure but when i do my friends backyard setup i always pizza. I dont know if this is from long skis or i just havent skiied before and it really pisses me off. and im looking at the k2 silencers if anyone has some good advice on them, thatd be great.
k2 is a really solid company, any ski you buy from them is guaranteed good. You really cant go wrong with them. And since this is your first year of park, id go for shorter skis, like silencers in the 150s length, or look here http://k2skis.com/skis/factory/silencer , go for the 159 since that would go to your eye level and that's perfect for a beginner skier.