I just priced out that case setting it up for just cooling a processor (Athlon64)... Came to over $435 WITHOUT a power supply... Bloody hell. I priced out a kit that has two 80mm fans (on either side, so up to four total) with over 660W of cooling, res., pump, CPU block, fluid, fittings, and the anti-kink tubing... Came to under $300 for the complete rig. That's also with the innovatek fluid and such. Granted, I didn't include fans, but I was planning on using some 80mm fans I have currently in the beginning and possibly adding others later. I'm planning on mounting the res outside the case so that I can get a read on how much fluid is left with just a glance. It will also show me if the pump is working, since I'll see the fluid moving (might see about getting something to show motion in the res.).
The biggest decision I need to make (in all reality) is where to put the radiator and res... I'm thinking either the top, right side, or rear of the case for the radiator. I'm looking at either the rear or right side for the res. IF I do the right side, I'll be fabricating a housing to protect the rad and res for when I work on the innards of the system. I'll either end up using decent thickness aluminum or steel for that, depending on what the local metal shops (and/or machine shops have on hand in the correct sizes). I might try and use some diamondplate for the side housing, since I know it's strong, and it would give the case an industrial look. I'd have the place I get it from cut the holes for the radiator fans, as well as for where the res would/will go...
I need to take some measurements and figure out where everything can/will go and move on from there. It should be a decent project for at least a few weekends. I'll post up about it when it's finished...
I guess the point I want to make sure to make about all this is to price the things out BEFORE you just purchase something. Just because someone else is doing the setup doesn't mean you can't. Also, you can probably use the same (or better) items inside your own case (or one that's not as expensive) and get away with spending less money.