I'm looking at buying either a used Martin DRSGT or a Martin DM. Right now I'm using a Martin DX1RAE and it's nice but I believe these other models to be a step up. I'm really a biginner (half way through fundamentals 2) and I plan on learning fingerpicking next. I'm probably over my head when it comes to choosing a decent guitar but right now I have an opportunity to buy one of these Martins at a really good price. Any advice on which model I might choose, the DM or the DRSGT? Thanks.