mountain biking the only way to geocache! I have a Giant AC2. Great bike. I have front and rear suspention, hydro disc brakes, the works. it depends what kind of biking you'll be doing. cross country will only require front suspention. Other good makes are Trek and Garry Fisher. I have a rack that fits on the back of my tow bar, but you can also put it in the back of my jeep if you take off the quick release weels. Can't give you price advice, I live in Ireland where we pay doubble for everything!