Wow, you really got alot of great ideas here from QB members! I think I'd have a hard time choosing between them. I really like the idea of using the dark, low contrast blocks all around the center like a border. That way they'd be "hidden" blocks, which are waay cool! I also really like the suggestion to put hourglass blocks in between each block to make them look framed and set on point. And I like the idea of putting solid color blocks between the pieced ones, then quilting in the pieced block pattern on those. Tough choices! Whatever you choose, I think it'll look smashing!