Sorry, man, but at this point you need some practice before you even consider playing a guitar. The chords will probably fall into place within a week or two, but there will still be a lot to learn. Depending on how serious you are (and $, obviously) I'd advise you to get an accoustic or classical guitar to start with. They tend to develop good habbits, like propper picking and left wrist position, rather than overdistorted wimpy picking and cramped left hand choking the guitar. The right hand rhythm work, as well.

P.S. Long fingers do help.