Ok I have the idea of the perfect case in my head, but am having trouble finding it in real life and could do with your ideas or suggestions please! 
The case is to house an i7 server which will be on 24/7 and running folding@home, it will also be water cooled (ideally triple rad) as it needs to be quiet. Has anyone got any suggestions of cases getting near this description:
Looks: Black minimalistic, no windows or fancy lights. (like the R2) - This is important, it is going to be in the living room and needs to look like a black box rather than a PC.
Fans: Fan intakes in the bottom, with dust filters that are easy to clean, vents out the top (like 800D). Potential for housing ideally a 360 rad in either the base or roof, minimum a 240.
Size: Not massive! This is where I'm struggling, larger cases have all the features I want but I'd really like to keep it as small as possible, I'll be going for a m-ATX motherboard to give more space for the water cooling, a m-ATX case would be ideal but I doubt there are any that would take a triple rad even with modding.
Bonus - hot swap HDD bays would be nice.
Basically I'm after a mini version of the 800D that looks like the R2 and can take a triple rad. Failing this I may try to mod an R2, I'm sure there is enough space in there somewhere
Any suggestions?
Cheers

The case is to house an i7 server which will be on 24/7 and running folding@home, it will also be water cooled (ideally triple rad) as it needs to be quiet. Has anyone got any suggestions of cases getting near this description:
Looks: Black minimalistic, no windows or fancy lights. (like the R2) - This is important, it is going to be in the living room and needs to look like a black box rather than a PC.
Fans: Fan intakes in the bottom, with dust filters that are easy to clean, vents out the top (like 800D). Potential for housing ideally a 360 rad in either the base or roof, minimum a 240.
Size: Not massive! This is where I'm struggling, larger cases have all the features I want but I'd really like to keep it as small as possible, I'll be going for a m-ATX motherboard to give more space for the water cooling, a m-ATX case would be ideal but I doubt there are any that would take a triple rad even with modding.
Bonus - hot swap HDD bays would be nice.
Basically I'm after a mini version of the 800D that looks like the R2 and can take a triple rad. Failing this I may try to mod an R2, I'm sure there is enough space in there somewhere

Any suggestions?
Cheers