If you are thinking about attending the Oregon Symphony's "Carmina Burana" concerts (May 17, 18, and 19), you'd better act quickly, because all of the concerts are almost sold out. This piece features three soloists, the Pacific Youth Choir, and the Portland Symphonic Choir (I'll be singing with them). Also on the program is the orchestra's first performances of Messiaen's "L’Ascension" (The Ascension). For more information and tickets, see the Oregon Symphony web site.
Otherwise, take a look at this article about an arena-sized presentation of Carmina Burana in England.