I've been making a really half-arsed attempt at learning the guitar these past few months only practicing for about 15 minutes a week, and that was power chords that my friend showed me. He said since i like metal he was going to teach me metal. Anyway, I've decided that I really want to make a go of it, and was wondering, what is the best thing to learn with. My other friend, who started just under a year ago, taught himself and is pretty good that gives me hope, says it's better to start with acoustic as it's tougher and you can hear the notes better. What are your opinions on this and would it be worthwhile getting one of those Chord books and DVD's?

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yea lessons are better than books and dvds. they help you when you are taking lessons but alone they are iffy.
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I find that no DVD works because none of them really make the connection with you. Your friend and a good music book should be all you need and yes, start on acoustic.
If you start out on acoustic you cant do cheap tricks to be able to plat song thus youll learn the right way.
It is much cheaper, and possible more pleasing to the ears, to start on an acoustic. It's not easier, as others have said. That does not mean that learning on an electric is any more easy. I was able to learn just by one book, and the rest I learned here on UG by asking people, watching Shred Masterclass (I've only really used the pentatonics lesson, though), and working a lot on technique instead of just learning a bunch of songs. However, I also had prior music experience. Your friend might be able to help you out, and a book might make things easier. There are also a lot of lessons on UG that should help you out, and there might be a chord chart somewhere on this website with every known chord. I have seen it before...
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I really did learn by learning songs that I listened to. And I got the help of friends and a few lessions, but I really did it with the occassional tab and scale diagram, and my ear. That's how I found it to be the easiest. Lessons honestly didn't do much for me.
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Thanks for the replies everyone.

Heineken Cup Champions 2005/2006 2007/2008

Start learning some songs. It's a good way to pick up momentum on your epic guitar quest compaired to just randomly noodling riffs.
Learn whatever will make you want to play on a daily basis in the meantime. Even if you don't "practice" on some days, just picking it up and strumming keeps you sharp. Try some chords.
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First look up finger exercises to get your fingers used to moving along the fretboard. Also look up scales to help you warm up.

I had lessons years ago and then stopped playing for about 15 years. I've just recently started again and am going through the Hal Leonard Guitar Method series. I believe this is a good place to start if you want to teach yourself. It's pretty basic and gives you a great starting point. They also have a Music Theory for Guitar book that goes along with the Method books and helps quite a bit.

I usually spend my time warming up with scales. Then work on a few pages from the Hal Leonard books. After that I usually have one song for acoustic I'm trying to learn and one song for electric that I'm trying to learn that I work on for about 15-20 minutes each. After that if I have time I try to improvise for a while.
If you don't want to buy an acoustic guitar, you can still use the electric to practice efficiently, just play it unplugged. That's what I did and still do. If you practice like this, it will actually work better than the acoustic because with the electric guitar, there is no resonating chamber to amplify your playing.