Replying to DH/DJ Bike

So I know nothing about biking, but I've gone with a friend of mine to some dirt jumps near me a couple times the past week. Now that summer is coming around, I'm having a lot of fun biking so I'm looking into buying a bike.

I've had a lot of fun on the dirt jumps so I want to be able to do that, and I'm also going to be in SLC this summer so I'd like to have the option to do lift accessed biking at Park City. From what I've read dirt jump bikes aren't the best for downhill biking, and vice versa. What I've been using so far has been my friend's standard mountain bike (Dawes Haymaker). I'm also not looking to spend a ton of money since I'm moving.

Any advice on what type of bike I should look into? Thanks.