So I've ordered the new Mac Pro, which I'm excited about, but unfortunately there is no line in. What is a good affordable route I can get a mixer with L&R 1/4 inches cables and an MPC with L&R 1/4 inch cables routed into my computer. So obviously looking for something with 4 1/4 inch inputs. Under $200 would be great, under $100 would be better. I don't require any pre amps, just straight audio into my new machine.