In the same situation as you, except my boyfriend got me the guitar for Christmas. It's an acoustic, and I didn't want to spend tons of money on lessons or anything. People are right, Youtube has just about everything, but it's hard to find good stuff. Most of what I have found is people trying to get you to sign up for their pay-for websites.
I DID however find one good set of beginner lessons here:
http://guitar.about.com/library/blgu...sonarchive.htm
I had been practicing 1-2 hours each day since I got it, but I actually began feeling pain in my wrist after about a week. I plan on investing in some sort of hand exerciser to help, since I have weak arm strength and small hands.
As a further question to guitarists here, about what could I expect to pay for a few lessons, and how long do they generally go on for? I may actually invest in a few to help me keep from getting into bad habits and finding out where I reeaally suck lol.