Will my PSU handle watercooling and clocking my CPU and GPU?

[AFK_Matrix]

Hi,

Just wondering if my OCZ Modstream 520w psu will handle a WC kit and an overclocked opty 146 & a OCed X1900xt?

Thanks

 

[AFK_Matrix]

Well the pump I am gonna use is this one:

Alphacool Laing DDC-Pump 12V Ultra (btw does this plug into a molex from the psu?)

And would like to get above 3ghz on the chip as its supposed to do that on air, testing that out tomorrow. And then clock the 1900 as far as it can go really.