Welcome aboard! $25.95 http://catalog.usmint.gov/webapp/wc...ctId=14433&langId=-1&parent_category_rn=10111
The mint's website says that they will be $25.95 this year. There is no product limit, but with the ever increasing price of silver, you might want to buy them quick before they stop selling them to re-price. They go on sale on Tuesady, 3/18/08.
I swear I just read on the mint page they go public on 3-17-08 at noon. Also, that all orders placed before then will not be honored.