Hey--CONGRATS!! You learned a lot from piecing all those different squares!! You have every reason to be proud. Hooray!! :D :D :D
Borders? I'm not sure... I'll have to look again...
Okay--I'm back--I guess, because of all the different colors, I'd do a log cabin border (one side, then the next touching one, rather than opposite sides at the same time) and have each side a different fabric from the quilt.