Hi...
I am a big believer in the powers of Broccoli etc and a couple of years ago started growing and eating my own tasty nutritious sprouts...here is a link to the seed store I use: http://www.sprouting.com/canstore/enter.html
they have a U.S and Canadian store... If you scroll down the seeds available in the store you will find one called Spring Mix with a link to an article using the same mix of seeds and there effectiveness with Cancer...I would have put the direct article link but couldn't figure out how to do it as it is sort of within the sprout site...anyway the seeds are very easy to grow, all organic and extremely tasty.