You can use a search engine like Google, and search quilting frames; then go see what the sites have to offer. Comparison shopping sites (NexTag, etc.) will be faster. The link below will take you to a page of Juki machines and frames, sold together.
http://www.allbrands.com/products/abc0645.html
Attached (I hope) is a Microsoft Word document that I made up about the Juki machine I'd like to have.