I have EQ7 and love it. Quilt Design Wizard is reasonably priced and a good place to start. I bought Quilt Design Wizard at Joanne's for about $30. Maybe you could use a coupon to get a better deal. But I'd say it's definitely worth investigating.
My quilt designs are getting to be as big as my stash. I know I'll never get a chance to make them all but it sure is fun to play with the software.