the block is the supreme hf,
best block on the market bar none.
it is a closed loop that we install, it will require very little maintenance.
the xspc res at the front contains the pump which is more than powerful enough for a simple system like this.
the radiator is an EX120 which are XSPCs new high end radiator. more than a match for the cpu heat output.
and your card will work fine with the 6950 in the system. as i say though, it may be best to call and ask for the psu i suggested above as it has a bit more grunt for dual gpu computers.
the loop is designed to cool the cpu only, the case isn't big enough to accommodate dual gpu cooling as you would need at least a quad radiator.
all the fans and leds are on the cases built in fan controller
so the lights turn up and down with the fans, its pretty cool
the hazro would be an epic choice and the 6950s would definitely be up to the job of powering it.
that would be a really nice upgrade