1ib.

I'm an amateur guitarist/pianist/singer in need, somebody help!

This is my issue, I had a pretty old PC with some ram issues, it would freeze for a couple seconds every 2 mins or so, I've always wanted to be able to use my PC for multitrack, so I downloaded this free software Audacity and tried what common sense told me, record, then put some headphones and record on top of it, and it should be synchronized, but for some reasons there was always this horrific delay and I figured it was because of the PC.

So I decided to invest on a new one (for other reasons too) and eventually bought it, runs super smoothly, well I decided to try again (now that there was no freezing), and so I downloaded Audacity again and still used the same mic, but the lag issues were still there! My PC couldn't be the problem anymore, and so upon research and talks with some clerks in a few music stores they told me the problem lays on the fact that I dont have an audio interface, and so I've decided to get one, upon more research I've gotten relatively nice comments on the POD Studio UX2 which fits my price range at the moment, and then get a condenser microphone (something I had never heard of before) to get nice sound quality.

What I want to do is multitrack at least 10 different sounds, namely different tones of voices, electric and acoustic guitars and keyboard without synchronization problems, the PC was something I truly needed but I just want to make sure my pick of the POD Studio UX2 makes sense for what I want, or if there's any other hardware that might be better for about the same price.

Also any condenser microphone of under $50 recommendation?

Thanks in advance!