Great post Mr. Poe.
About choosing a classical guitar...there is a reason why that isn't a bad idea at all. If you buy an electric guitar first, it will be great fun learning to do power chords and noisy solos, but when you reach certain level where you want to start using more complex chords and arrangements, it's gonna be a hell of a lot harder.
Starting off with a classical guitar makes you learn the "difficult" part of the guitar more naturally. It's harder to make it sound properly, so you'll really learn how to press the strings with the right pressure. The strings are much more apart, wich will help to stretch your hands, so the moment you pick up an electric, you're gonna be as fast as lightning, and you'll have all the weird chords you have learned with the classical. It's a good move in the long run, it's not so rewarding but you'll really skip a learning block when you decide to play anything that aren't power chords.
The other important issue is motivation. If you are really only into metal and it just won't be fun playing classical, buy an electric. If you really want to learn guitar properly nevermind the style, if you don't start off with a classical, you'll eventually buy it. It's so much of a challenge...
A small (but very important I think) advice for the people learning guitar, especially metal: It's better slow and properly, than fast and wrong. Don't be tempted to reach infernal speeds, it will make you useless, play slow if necessary, but do it properly.
Thanks, Kudzu. I hear what you're saying. I'll preface my response with this: I studied classical after learning how to play on an electric, so I have that bias. So I respect what you are saying. However...
Yes, perhaps classical can help with your left hand. I don't really find mine to be all that hard to finger, though. Maybe it's that I have a good, well set up guitar. My acoustics are much harder to play in terms of finger strength required and accuracy of finger placement. I'd put the classical fairly close to my Les Paul, actually.
I have always found that after playing my classical, it's
harder to go back to my acoustics or electrics! My fingers feel so cramped! And it's weird to go from a dead flat fretboard to a radiused fretboard. Furthermore, going from nylon strings to steel is harder than the other way around, imo.
If you are going to play classical, I think you really should play it the correct way. This means: left foot elevated on a stool, guitar resting between your legs, right arm draped, fingers near perpendicular to strings, strings plucked with fingernails. None of that is relevant to playing acoustic or electric. And if you aren't going to play it the proper way, then I just don't get it. Are you going to play it with a pick?!
Which brings me to the next point: guitar playing is not all about the left hand. If you focus on classical, you will be working your fingerpicking skills (even if you don't use your nails...though it's harder and doesn't sound as good when you don't use your nails), and your plectrum skills will suffer. (Also, I find the transition from fingerpicking on the classical to the acoustic strange...the strings are too close! I don't have the same kind of room.) Good flat picking takes just as much practice as left hand technique, and it's really easy to develop bad picking habits that will be
very hard to break. I still, after many years, am struggling to break my bad habits. The result is that I'm slower than I'd like to be.
I do highly suggest classical, btw. It's a beautiful instrument worthy of study. I love mine. If you go that path, again: get a teacher. And check out Frederick Noad's book "Solo Guitar I". It will take you from non-player to player pretty quickly. For me, nail maintenance has always been very hard. I wish my nails were stronger and grew faster!
Something to keep in mind that I have seen time and time again is that the first stage of learning guitar (being able to make your fingers press the strings down to get notes to sound) can be a challenge, and sort of painful (with all the callous building going on), but you end up being rewarded by very shortly being able to play a lot of chords (and thus songs). To get to the next level, of being fairly competent, isn't all that hard. You'll probably get there without trying hard, since once you get chords and stuff down, it'll probably be hard to
stop playing (if you're like the guitarists I've known). To get to the
next level is pretty challenging. Because it means that you have to devote some of that time that you spend playing stuff that sounds cool and jamming to working on modes, arpeggios, chromatic exercises, and whatnot. It's immediate gratification versus delayed gratification. It can be hard to not just stagnate by doing the same stuff, which can be fun, over and over.
Learning guitar is full of plateaus...and I guess what I'm saying is that if you put a bit of time in at the beginning, the guitar will probably not end up collecting dust in the closet. To be competent is pretty easy. And maybe that will be enough. If it isn't, I'm sure your guitar will be up for the challenge.