Me and Savagenerdz are getting into biking for the first time in a long while. We do some road and off-road. I have a old typical Wal-Mart mountain bike, and I would like to get a better one since i'm sure we're going to be at this for a long while. Any suggestions? Also are there any good seats I can get, because i've done 12 miles in the past 2 days, and my butt hurts pretty bad lol.