So, finally, I found a bento box that I really really liked. We went to Owajimaya last night and I found a fantastic little kit.
http://www.zojirushi.com/ourproducts/lunchjars/sz_ba.html I got the light blue one.
I am very excited about this. I have been wanting to experiment with bento and it's a good excuse to eat funny looking cute food AND eat better! :)