But is that really a 'beginner' ski? Not necessarily.
In regards to OP, you're going to have to spend a little outside of three-hundred dollars. But to come as close to that mark, I'd recommend Line Masterminds, which are 349.95$ on their site, or K2 Presses, which are about the same I believe. Both of these skis are fairly low-key, light, and will go all over the mountain as well as the park. They have a lower swing weight, and will be middle of the road as far as flex go.
But if you have a local shop near you, head there and ask about deals as far as skis/bindings go, because they may have inventory from last year around that you can get for cheap, and they'll be able to help a bit more.