I want to be able to (1) play DI bass and use up to one mic (sometimes phantom power) simultaneously into the computer (either for recording or taking music lessons remotely); and (2) play along through headphones with music that's playing on my (Windows) computer. I think what I need is a two-channel audio interface that can do at least one channel of phantom power. First, am I correct that I just need an audio interface to accomplish both of these things? Second, any recommendations for specific interfaces? I don't necessarily need pro studio level gear, but at the same time I want reasonably good quality. I'd like to spend less than $300. (I already have headphones, mics, and cables. I just need the interface, if that is in fact the right tool for the job.)