I'll Second all of the above!
In my mind the guitar is foremost an ACOUSTIC Instrument, and should be held to the same high standards that you give to your other acoustics in the arsenal. An A/E that sounds bad un-plugged but sounds good amped is a waste of money.... that's why the Guitar God made electric guitars in the first place. Not that you shouldn't give due consideration to the plugged in feature as well, because the main reason for going that route (IMO) is so you can get more out of it in the venues that require more Oomph.
Henry is correct about playing as many as you can in your range, and I would add in as many different shops as are available. Sometimes you will pass on a nice guitar because the shop you played it in had held it on the wall so long that the strings are dead, or it might be poorly set-up, or the place might have such tight quarters and people around that you can't get a good listen to what it is producing due to background noise or cluttered acoustics.
Don't be in too much of a rush and you will stumble on the "right" guitar for you at a price you'll be happy with. Shop around and remember you will (hopefully) be friends for a long time.
"what is this quintessence of dust?" - Shakespeare