Get yourself a cheapy 'walmart-special' with plastic strings at first. The number of people who I know bought themself a decent leccy-guitar first off have never learned how to play the guitar correctly and well (they can only seem to play power chords)
There are some quality books that you can get that help you to learn the basic chords...something like this:
These are great to start with, as you will know most of the songs (obviously choose your best band or something), and it will give you a great start. They show you each and every chord you need to know, and show ya where to position your hand.
Then, once you've mastered that (2 months - 2 years depending on how much time you put in) step it up a level...and so on.
Ive been playing for about 9 years now, and I'm shit-hot
