Hey, if anyone can give me some helpfull feedback on this- much appreciated!
I'm working on a custom liquid cooling system so I can start overclocking, and I just bought a Swiftech QP 2x120mm Radiator/Reservoir.
I attatched it to the back of my case as you can see in the pics. The only concern I have is that the top part, were the built in reservoir is is mounted somewhat in front of the P/S exhaust fan.

Is this a problem really or not? Its a 680W supply, but doesnt seem like a big affect to me.
Also whats the difference btween placing the pump before the radiator (as in pushing water through it) or after the radiator (as in sucking water from it)? All I have read is that it is beneficial to place it before because you want the coolest water (coming directly from the radiator) going to the components. However how much heat could a 12VDC pump actually add to the coolant that it is moving at such a swift pace?
Here are some more pics of my system. So far I was thinking just of cooling the CPU, ATI Card, and the NB/SB. I was thinking about cooling the HDDs but the affects (appx 3C) just doesnt seem worth it.
Anyways, thanks.

Yeah, I guess a 1/4 inch of extra spacing is a good way to better the problem. I was thinking of getting one of those Thermaltake 5.25" bay Radiators since I have 4 open bays to use. Does anyone know how well those work? Or maybe 2 or em if need be. I do have a forth stick of RAM, it is just out getting replaced under warranty and I am waiting for it in the mail. I guess the NB/SB isnt that big of a deal since its just a Foxconn P35a-s board and maybe I'll save that money for those wbs to get a better mobo. Also, any input on the pump placement would be helpful, unless it really doesnt matter.
-Dustin

Great info, thanks a bunch! Thanks for the pics of your set up too. How'd you do the cutouts and mounts for your two rads on the side? Looks nice. I am thinking I'll just mount another 2x120mm on the top inside and cut out the top of the case and put a grill over it, wopuld this need to put another reservoir above so the rad doesnt accumulate air bubbles? It would be sic to have your setup but have to maintain asthetic appearance (well asthetic in the eyes of the girlfriend), lol. Guess I'll trash the TT idea. Sorry, I have a lot of questions since this is my first liquid cooling system :-)
Also, is one of these swiftech pumps, think its like 300 lph, good enough to pump through both rads?

Okay, so I've taken your advice and invested in some new 120mm fans that have like 75-85 cfm and 20-24db, hopefully these will work better. I also got some spaces to remount my radiator so it is not so close to the p/s exhaust. Anyways been searching forums for an answer to this question and figured I should just ask here. I bought another radiator and some fans and was planning on mounting it on the top of my case (inside of cousre, with a fan filter and neat little grill to put on the top so it looks nice) however I was thinking about it, and since my oterh radiator has the built in res, if this new one is mounted horizontally and higher than the one on the back, will this even work or will there be air in the top radiator unless I use a t-line to fill the system vice the plug on the res/rad combo on the backside? As for the T-line, what type of fitting/thingamabob do I use to plug off the end of that, and should I put a drain piece in or is that a waste of money? Thanks for all the help, should start seeing it coming together in the next few months!

Okay, been awhile but I've almost got this show on the road, lol! Had one question for you though, before I start gutting and cutting my case. I got one of those Swiftech variable speed pumps like pic above, but already have 3/8" fittings on almost everything, so since that pump has 1/2" barbs, I can just use a reducer (3/8" conversion kit) and should be good right? Anyways, I'll be posting some more pics up after I install the other radiator assembly this weekend.

Okay, got the new rad and fans installed, the rest of the suff will be here fedex by friday, but I am having trouble finding instructions on how to jumper this Swiftech MCP-655, the only thing I really see is to buy one of those ATX Power Jumpers for like 2 bucks. BUt then I gotta wait for that in the mail. Do you perhaps know of another method? or give me a hint where to find it?

Jumper any black wire to the green wire on the PSU connector, the PSU will turn on.

I overclock my hard drives and they float in a pool of liquid nitrogen encased in a box of unobtanium. It's that important. At least that's what the internet told me to do.

I also have 34 million bottlecaps saved, my preacher told me they are what heaven uses in the soda machines.

The best sci fi movie button was the self destruct sequence in Galaxy Quest. Since the TV show always was able to save the ship before the button was pushed, the aliens desinged it just like the TV show. Stopped at one second.

i want to cut out some parts from my case also,

ps: u couldnt find ashtray could u

Cut out the hot parts.

Oh you mean cut holes in the case etc? There are some nice demos on how to do that on YTube.

Ashtray means the ashtray I guess. Translation error?