Nice parts you've selected!
I think I'm going to try that XSPC restop myself, looks slick.

Quote Originally Posted by manyga View Post

I will buy the new nVidia geforce GTx280, for this I don't WC 8800gts.
Then I will WC 790i, but I don't know compatible blocks for this...

What fans are good for the radiator??
For fans on the radiators, try some Yate Loons from Petra's - they ship international as far as I know.

EK Waterblocks makes blocks that will work with the 790i. Since you're in Europe, might be easiest to order straight from them.
North bridge block
South bridge block - this one might interfere with the GTX 280's stock cooler, it does with 9800GX2's
MOSFET part 1
MOSFET part 2
All those waterblocks are also available with black Acetal tops instead of the acrylic for 3 Euros extra each.