u cant use the h100 if you're gonna fit the optical drive. get the h80 instead.
also the gigabyte mini itx board is voltage locked iirc, i'd say get the asrock board or asus itx board instead
I swear I saw a video review where they said the lid from the ceiling of the case could be removed and the rad fitted externally......I could be wrong though.
I was just bouncing ideas around. I saw after I posted he said he doesn't want to be limited by the mobo, so a mini-itx mobo is probably going to be dismissed anyway.