I also agree with pretty much everything that's been said. You can actually get a great-playing acoustic guitar for not that much money that will grow with you as you become a better player.
The brands mentioned are a good place to start looking. Takamine in particular makes some good guitars for not much dough. Some additional thoughts...
- The $500 - $800 price point (as opposed to $200) is more likely to get you a guitar that sounds good and will last.
- I, for one, was kind of shocked how good the "cheap-o" Martin sounds and feels. It's not real wood, but I think it's a real bargain. I liked it. It was fun to play and sounded lively.
- Among more affordable guitars, sometimes manufacturers throw in little stylistic touches to make a guitar seem better than it is. Gaudy inlays, odd-shaped pick guards, etc. You don't want to pay for that stuff. Think classic, no frills, solid player's guitar.
The next couple are more applicable if you already know how to play a bit (I don't know if you do):
- If you do decide you like a particular model, if at all possible try to play the actual instrument you're going to buy. EVERY guitar is different. Guitars that are the same model, same year, can be surprisingly different.
- Demo a guitar for as long as possible. Politely ask the sales guy to leave you alone for a while. They have a habit of hovering over you so you can't concentrate.
- Think about the size of the guitar. Are you a big person with big hands? Is there a banjo player in your band that you have to be heard over? Then maybe a big loud dreadnaught sized guitar is the thing. Or does your right arm feel sort of uncomfortable reaching over a big guitar?
Oh, and if you wanna get chicks, start with some Oasis, Beatles, and Matchbox 20. Then when you're ready, tackle some Dave Matthews (difficult) and -- if you really wanna knock their socks off -- bust out the John Meyer.
Happy pickin'!