I'm in an acoustic duo and we've been taking some gigs lately and using other bands pa's or house systems. I know that we're going to need to get our own sound system eventually so I've come seeking some advice.

We both play guitar and sing, and use a keyboard every once in a while. We're pretty clueless when it comes to live sound so if someone could point us in the direction of what we would need... Also, the gigs are usually about 150-200 people.