Audio interface

Absolutely concur: Babyface. Best 2-channel interface on the market, period. And if one day you decide you need more channels, you can always expand it up to 10 channels, via optical link.

Oh, and if Babyface is out of your price range ($750), then my next suggestion would be for the Focusrite Scarlett line (starting from about $150), which IMHO gives you the best quality and the best value at the low-end of the market.