I couldn't tell you what kinda case I have it's an old one I got it custom Made maybe 5 or 6 years ago...and I keep upgrading it....lol
car coolant would make sense...would it be a lot better than the coolant they sell with the PC water coolers?
and umm, what would a rad box do? contain the Pump and Reservoir? (Reservoirs hold the water/coolant right?

) then all I have to do is run the tubing in through the back of my case to the hardware?