Their site is pretty neat. Because of the breath of the offerings, the site allows you to research what you like and build a list of those plants you want to buy, thus making the day of sale easier for everyone.
They have more than 4 dozen different varieties of tomatos including quite a few heirlooms. The one problem they had was that they didn't have a photo for all of them with one holdout: the Mr. Stripey. They asked if they could use a photo I took of the Mr. Stripey a few years back. Of course they could, I said! They posted the photo here. Unfortunately, they don't ship plants, so unless you're planning on being up in the Twin Cities, the sale is likely not going to work out.