Karla, First of all, I like your new avatar. Second-I have never sold a quilt, and have no idea how to price one. I did a google search and found these two sites that might help you some. Good luck!! Your work is beautiful-do not sell yourself short by asking too little.
http://www.artisticthreadworks.com/public/971.cfm
http://www.bryerpatch.com/faq/marketing.htm