http://www.registration123.com/nats/2010CONFERENCE/Welcome.cfm
It looks as though Kristen Chenoweth is no longer coming for the NATS conference. Sorry to disappoint anyone. It looks as though the new guest recitalist is someone you wouldn't want to miss either...... From the NATS newletter:

She had an acclaimed Carnegie Hall debut and recently appeared as Eliza Doolittle in the NY Philharmonic production of My Fair Lady and has appeared with orchestras throughout the country. In addition to her appearance on numerous cast albums, O'Hara has recorded a solo album Wonder in the World which also showcases her talents as a composer. Visit www.kelliohara.com to discover more about Kelli's career.
In addition to her concert on July 3rd, O'Hara will work with talented singers in a master class setting on Sunday, July 4th. O'Hara's concert is a ticketed event at Abravanel Hall. All conference attendees who register for the full registration will receive one ticket to the concert. Additional tickets are available for purchase and all information can be found at www.nats.org. Join us as we welcome a singer the New York Times proclaimed "the most accomplished Broadway ingénue to emerge in years."
Please let me know if you want tickets.
Tiffany