Quiltinaday usually has the best price on EQ7. You have to put it into your cart to find out what the price is, but it's a substantial savings.
I have tried out the quilting designs layer. There are lots of designs provided, but I haven't found it very useful for that purpose. You might have a different experience. While it is possible to design almost anything, some things are a lot harder than others. For instance, I was able to come up with an EQ representation of the center of my avatar quilt, but not the entire thing. It still allows me to experiment with different color combinations. I'm also a big fan of the software.