well the problem is that installation is not easy if you have not done it before and are not very careful with it. i ruined my first installation. so it is a very expensive experiment. no amount of video watching would make it easy for you to install it. as simple as that
in my opinion, if you do not want to get your hands dirty, just get a cheapo one installed from the local store. i found a store that does proper installation here in gurgaon. it took the person a minute to install a skin that would take me 10 minutes to get right
and get it replaced when it messes up. over a longer period of ownership, you still spend less!