Yes I know they are big. Thats fine. And it will be used to host old parts to make a server. I want to try my hand at building a Cluster and most dual cpu motherboards are very expensive and if using 2 different computers networked together or what ever then you dont get full use of the components. Iv already done lots of the research and already have most of it ready to go but making my own case will take far more extra time then im willing to put in but also not willing to spend 400 odd quid on one.
Just get two cheap single mobo cases and stick um next to each other? especially as ur just playin around with it at moment.