My wife wants to try mountain bike riding and I'm all for it. I don't know a damn thing about mountain bikes except the off road bike association here has some nice trails!! I'm 6"2" with a 34" inseam. Can anyone suggest to me a nice entry level mountain bike and what size to get without killing my bike account, I don't want to dip too far into the motorcycle fund? The wife has one her friend gave her that she likes so she is covered.