So, this is my first watercooling loop, and the first time I've done any serious modding on a case. I did all my research last year, and began purchasing parts (used where available, new when neccessary) around June of 2K11. I got all the parts I'm likely to need finally around Dec 2K11, and put this off till about Feb. Now I've begun. There are two parts that I've custom fabbed; a case top to accomodate a 2x120mm rad and an acrylic pump bracket. I've cut the case to fit the rad and modded a few wires. Right now I'm almost finished. I'll be posting pictures and updates whenever I lose motivation to keep working on the project. Until then, a few teasers. Yes, I know; Antec 900? UGH! That's why I'm using this case, if I phuxx it up it's no loss. Beginning The first thing you'll notice when looking to watercool an Antec 900 is that it's got no good spots for a rad. Antec does make a 200mm radiator for the top fan on the Twelve Hundred, but I didn't know if it would fit the Nine Hundred; not to mention the fact that it's aluminum so there's galvanic corrosion issues to deal with if you go that route. I decided against it; I didn't even bother checking whether the dimensions of that rad would work in the 900. Due to the way the HDD bay is designed, you can't really put a rad up front, the top of the case is no good for a standard rad, and the case door will hit a rad if you try to mount one outside. Mounting a single-fan rad inside is doable, but you need to use a fan as a spacer or else the rad hits the motherboard I/O indent due to the way it's sunk inside the case. I decided on cutting the case door to mount a single rad outside the back, and fabbing a custom case top to allow a dual 120mm rad. This brings me to the second thing you notice about the 900. All the functions are mounted in the case top. Remove that and you've got no power/reset switch, no front USB, no firewire. The solution I chose was to install a Scythe Kama Panel3. This gives me back my power/reset buttons along with front panel audio, USB/Power eSATA combo ports, a 2.5" HDD toaster, a media reader, and a dual channel fan controller. Taking off the case top was a major pain. Just under the front panel connectors were locking tabs, and just below that is a metal sheet inside the case that prevents you from getting at those tabs. It took some time and patience, but I got the sucker off and managed to keep it in one piece. Once the case top is off, the actual metal top of the case has to be trimmed so the rad will not be blocked. I don't have any pictures of this specific part :/ Another update with pics coming after work today.