Ok, i'm looking to buy my first modern ( no older than 3 years ) full sus bike. I feel that i need to move up to this kind of bike following my recent jaunt around Cannock on my trusty 20 year old Dynatech. I've never ridden full sus, so i am completely oblivious to how it rides or what i want, but i have a number of bikes i have my eye on that i feel may suit my XC/trail centre type of riding. They are a Giant Anthem X4, a Yeti ASR, a Rocky Mountain Altitude 50 and a Specialised FSR XC pro. These are all used bikes and although i dont object to buying new, i feel you get a little more for your money buying second hand. Any advice or guidance would be greatly appreciated.