I used to play the guitar when i was 13-14, but haven't played since then (it's been around 6 years). I suppose i have an advantage over other learners who had never played the guitar before, but i have forgotten all the chords and the notes, and i guess i have to polish up my picking and strumming and all that.
take a look at :
tabs-guitar.com some lessons are free and they break it down with tab and audio.
wholenote.com – lessons
vanderbilly.com – shows videos on playing songs normal and slow speeds.