Greetings, I have a thread going in the Desktop Computers forum about a rig I'm putting together, or rather trying to put together, anyway the card I have chosen is the MSI NX8800Ultra-T2D768E-HD-OC GeForce 8800Ultra 768MB. Unfortunately many people in the reviews are saying that the card is too powerful for its own good and actually needs to be under-clocked to get stable performance out of it. I have a Danger Den water cooling kit for use with the new rig but it does not include a VGA block and I am thinking I'll need to invest in one for this card. My first choice would be the Danger Den DD-8800GTX, they say it is designed for both the GTX and Ultra, but they are out of stock. The Swiftech' Stealth VGA block reviews well but I am afraid it will bottleneck the coolant flow because the system I have uses 1/2" tubing and equipment and the Swiftech' Stealth only has 1/4" ports ,though it comes with 1/2" adapters. This is my first WC build so any constructive input would be greatly appreciated. Thanks. EDIT: If the bottleneck would be a problem could I not get some 1/4" tubing and split the 1/2" into two 1/4" lines? I could then send one line into the VGA block and bypass it with the other, then merge the two lines back into one 1/2". This would keep the coolant flow from being restricted and the hotter coolant from the card line would be mixed with the cooler liquid from the bypass line which would help keep the overall coolant temps down. What do you think?