Water cool

Would this loop work? Would it be correct? What should i fix? 

Should work perfectly fine; you can fir a 480 in the topp of the 900D, by the way. If you used a bay res below the 480 (slim 480) on top, you could clean up the internals quite a bit. Turn to this build-log for inspiration and envy.

Ya i know you can, But i want to do just the 360 first then add the 480 later. I dont want so much room taken up on top

I might actually just do the 480 then add the 360 later*