Alright so I am planning on purchasing some Klipsch Promedia 2.1 speakers from Craigslist for $80, which is a pretty good deal on some nice speakers. I am only 17, so I am also going to bring my 19 year old brother. The guy is going to set up the speakers so that I can test them out at his home and see how well they work and stuff. Is there anything I need to look out for or any other precautions I need to do? This is the first time dealing with Craigslist.