What should I do?

A little overview of my situation...
Last week i attended a 4 day national conference for the company i work for where i met a gorgeous older woman. I am 23 and she is 37. We met on day 2 of the conference at dinner where we began talking and getting to know one another. We continued to spend a good deal of time together, and when we weren't together it seemed as though she came looking for me moreso than I looking for her. I was somewhat baffled on why this beautiful older woman wanted to spend so much time with me rather than people that were closer to her age.
At the end of the conference i gave her my business card and asked to keep in touch. (She lives in British Columbia and I live in Ontario which is about 2500 miles apart) To my surprise the next morning after the end of the conference i received an email from her (which at least told me that she was thinking of me). We have continued to email each other back and forth, and I have since asked her if she would like to get together for a few days in the near future. Her reply was that she would have to give it some thought, although in theory it sounded fun, and then she asked/suggested a location for us to get together. I left the ball in her court asking her to give it some thought and let me know.
What do you think? Do you think she really does want to meet up with me or was she just saying she'd give it some thought to be nice. Could it be the distance between us or the age difference that she is apprehensive about? How do I bring up the topic of getting together a second time without seeming impatient that i haven't heard from her regarding it?
Anyway, any feedback would be greatly appreciated. I hope this blurb makes sense, but if you have any questions please let me know.

The question was: What should I do? I think you have to wait. Seems like you've both shown interest, the ball is in her court, so I'd wait a bit.

From my perspective, being the older woman, the apprehension on this situation is difficult to get around. I don't know if that's why she shows interest, backs off - but it kind of describes me. Maybe she has other things to work out, like child care - who knows?

You also have some distance to consider. I'd feel very strange arranging a meeting place when you live so far apart. It's not like she has the safety of just going home if she doesn't feel right/safe. You can't just have lunch so she can check you out some more.

Perhaps the safety of the conference made her feel comfortable enough to show interest but taking it out into the real world is a different story.

I agree. As difficult as it is don't pressure her. Distance and age are both factors that I'm sure she's aprehensive about. Keep the freindly emails going in the interim.

I appreciate the your replies. I think i'm just a little antsy to get things moving. I have never met someone that i felt so close to within that short of period of time. It seemed like she was interested in me as well although i'm not great at picking up signals. I tend to over analyze things, and so now I will just keep those friendly emails going and give her some time.
Thanks again