thanks for the info......seems rather pricey....i might just try and turn my h100 block "passive" and use that. the fins inside it were tiny in comparison to my cheapy chinese one.
in response to rictober......
make sure you buy a brass/copper cored radiator (DO NOT USE AN ALUMINiUM RAD!!!!).....you do not want any galvanic reactions to occur.....i made this mistake and it was not pretty.
also make sure your fittings arnt other metals also.
i use sergical silicon tubing on barbed fittings.... i think it was 8mm ID (you want it to be tight). make sure your route doesn't have too many tight bends as the tubing will kink. if you need to do a tight bend, add a 90degree barbed fitting.
a bonus of the squidgeyness of the tube allows you to sqeeze/pump bubbles out of your loop with ease.
bad side is silicon tubing is slightly porous so some fluid will leave through it over time....but this is minimal. maybe 10ml every 6months.
i would also say add a drain tap/plug as this will make changing the fluid super easy in the future.
here a few pics of the mess i made....its not pretty.
with the crap block it performs slightly worse than an old corsair h100 on the same 360mm rad. despite the pump being much higher flow rate.