Suggestions ----
First go to Hoagiesgifted.org, and then go to amazon.com through there.
Then look for Carolyn K's lists:
Hoagies' Gifted List for Parents or
Hoagies' List for Parents of Exceptionally Gifted Children

see what interests you....
or try the article section of the Davidson Gifted Database: http://www.davidsongifted.org/db/browse_by_topic_articles.aspx

It all depends on what's uppermost in your mind at the time.

BTW - sounds like your summercamp plans are excellent. I also like the talent search idea. At this stage in the game it seems to me that the main questions I would be focusing on are -
1) How unusually gifted is my child - is it reasonable to expect that the school proram will meet her needs? Talent searches and IQ tests are the main way to sort this out. (How many hours/week is the gifted program? 2 hours a week may be fine for a kid who is on the "just like everyone else" side of gifted. Each program is different, but most of them are aimed at the top 5-3% not the 1 out of 1000 type kid.)
2) How happy is my child in her current situation? How much is she happy because she is "good at blending in?" Is she able to "get a lot of milage out of the regular work because she embelishes them?"

Seems like given your proximity to CTD, an educational assesment would be a fast way to bring yourself "up to speed" on how giftedness affects your daughter, and "atone" for past denial. It will give you a baseline for your own perceptions of how to parent your daughter. If the money isn't an issue, what would stop you from making the phone call. Interesting question, isn't it?

Love and More Love,
Trinity