Line chronic, Armada ARV88, AR7
These are all around the $350 to $400 price point.
These are skis that can be used as awesome all mountain skis yet awesome park skis. lots of pop and stability in all. The Pricing will only be $50 to $100 more than the others listed in this thread.
The problem with those cheaper skis is that they're really boring to ski. The cheaper construction of those will provide less pop, worse carving and will fall apart sooner.
I had Rossi Storms my first year of park and was amazed with how much more i could do when I bought Ar7's the next season.
Spend the extra money; you wont regret it.