I learned to quilt about 15 yrs ago because my son decided he wanted one and asked me to make him one. Yeah, right! Well, I got a pattern and made it then didn't know what to do once it was done. I asked some older women in church and they told me how to tie it.
Through the years I've learned mostly on my own. Most of the quilt shops around here do offer classes and sometimes JoAnn's does- or they used to. Call around and sign up.
At the time I first learned I had 4 small boys and was busy putting patches on their knees of their jeans, I even patched the patches! I figured if I could do that, then I could make a quilt. Tho I have improved a bit since then, it was definately worth it to see my son's face when he saw his purple and green quilt ( his choice of colors- not mine! lol)
There are a lot of places on the web that offer a lot of help. I personally like
Welcome to About.com. They seem to always have the answers I need.
There are some yahoo groups for quilting too. Check out the group section on there.
If you can sew a straight seam, you can quilt!
Most quilters I have met are a very happy generous bunch and will offer tips and info and short cuts just for asking!!
Go for it ! You will be amazed what you can do!!!