Scott: Not much activity here anymore. This was an active forum a few years ago. I'm glad you are interested in learning about Presbyterianism. I'm in the Orthodox Presbyterian Church, a group which came out of the northern PCUSA (before it became the UPCUSA and then merged with the southern church to become the current PC-USA) in 1936. I would suggest that the current PC-USA, in many congregations and presbyteries, is not very Presbyterian or Reformed in doctrine. However, it is not the only way to be an historical and  confessional Presbyterian. There are PCA, OPC, ARP, RPCNA, BPC, RPCUS, EPC and several other smaller and more conservative Presbyterian groups. But, read and study. You mighf find a copy of John Leith's The Reformed Tradition. Also, there are some good online forums where you can learn about Presbyterian and Reformed faith. Check out Puritanboard.com.