BTW abys, if you are looking at Sharka-whatever, Don't, they are way over priced on Innovatec gear. Go check
HighSpeedPC.
I have been thinking some more and I think you can swing it like this;
Reservoir, Danger-Dens $25
Pump, Ehiem 1250 $70
Water-Blocks, Danger-Den Maze-3 (1/2") $40 each from
Cooltechnica
Radiator, Black-Ice Evo REV2 1/2" $66
This is a high volume solution and You can order all from Cooltechnica.
Total minus shipping, miscelanious hardware, and tubing, $240 +