Well, I'm only 2 months late for finishing this project but it's DONE and I love how it turned out. I'm really glad I went with 12x12's as they seem to be the perfect size for this wall.
And a bonus... when I decide to switch out the photos for new ones, I can add the 'old' images into my scrapbooks in a 12x12 page protector!
****EDITED TO ADD****
The frames are from Quadro Frames... thank you Jamie for telling me about them!