Caber - you may be able to try them here:
http://www.saskatoonfarm.com/
I'm fairly sure that is the place I got mine from. Two types - 8 plants. They are now close to 5' tall. Only tried a couple - tart.
Very hard to keep birds out of them. Although loaded each year, we only get a couple cups. Not enough saved up for jam yet.
Cedar Wax Wings are the worst. They "harvest" before ripe.
May build a new Pheasant pen around them next spring....