Dj Recording...in The Market For A Mac Options

[DJStackrz]

Hello All. This is my first post to your wonderfully helpful forums and I figure you'd be of great assistance. I recently purchased a full set up of DJ equipment consisting of 2 Numark Direct Drive Turntables and a simple Gemini 2 channel mixer. I am looking to buy a new computer in January. I am in the market for a mac and am looking at the laptops. The Powerbooks are out of my price range (under $1500) and I figure I will look into the iBooks. Does anyone have any suggestions as to what kind of set up I can get to record mixes from my DJ equipment onto a decent mac laptop?
I dont know if any of this makes much sense, but if anyone can make sense of it and reply I would appreciate it greatly.

-Jay

PS: I also would like to be able to burn DVDs since I also do video editing, but the DVD burner can probably wait until April as I can ask for it as a B-Day gift