A couple weeks ago I got a brand new MBP Retina for free and I'm just pumped about it. That is, until last night when I wanted to record some stuff in Garageband and noticed there's no line-in input. I read up online and it looks like it's a discontinued feature on these machines (Crazy how they can integrate all this new technology, but it comes at the cost of things like the line-in and optical drives which have been standards on MB laptops for years). So I'm looking for a good audio interface for Garageband recordings. For years I just plugged direct into the computer for demos, so it's not like I'm using it for professional-level recordings. Still, I figure this is an opportunity to improve my sound. Any suggestions are welcome!