MrBevan :
It's a semi-modular unit - the 24pin is hard wired, everything else is modular.
Here's a review: http://www.kitguru.net/components/power-supplies/zardon/be-quiet-dark-power-pro-11-850w-psu-review/
Damn, because i was gonna buy some nice cables from CableMod.com
Do you know a fully modular powersupply that is really quiet? I was looking at some of Corsair's, but i've heard they had/have some problems with coil whining or something like that.