I recommend the Martin DX1. Solid top, but laminated back and sides. $460.
I bought one about a year and a half ago and love mine. I had a Tak before that but I didn't pay attention to the humidity during one Chicago winter and my neck warped (the guitar neck :wink: ) so I made sure I bought a humidifier with my new martin. I live in Okinawa, Japan now and the himidity is about 100% every day so no more wories about my guitar. I keep it in its case when I'm not playing it just to be on the safe side.