Well, there are some All-in-one water cooling solutions and then the custom kits. I saw some photos in Google of custom water cooling builds with that case and seems like you have room for many options, but basically like this
http://cdn.overclock.net/7/7d/7d8913d4_1g2tg.jpeg
Mainly you cool the CPU, for the gpu you would need to work it a bit more with a custom water block for the chip. There are some mobos like the ASUS formula that can use water cooling as well.