One loop or two

[fierynaga]

Currently I have this..

swiftech mcr320 w/ pump/reservoir --> cpu --> mcr220 --> mosfets --> northbridge

I'm considering a 5970 waterblock. Trying to decide if i should introduce it into the current loop. Would I need another pump to do this?
or..
Make a separate loop and use the mcr220 for the 5970. The mcr220 has only one fan on it due to space limitations. (its in the top part of my cmstacker 830 in front of the powersupply. I was thinking about adding a 1x120 radiator and putting it in front. Like this http://www.overclock.net/water-cooling/558909-simple-120mm-radiator-mount-mod.html
But much closer to the front than that.

Keep it simple or go crazy? :D

[Groveling_Wyrm]

IF I were to do it, I would go with 2 loops. In the end, it would be easier to deal with that way.

[fierynaga]

IF I were to do it, I would go with 2 loops. In the end, it would be easier to deal with that way.

Kind of not wanting to break the bank at the moment. I'm gonna put it in one loop and go crazy on a rebuild in the next two months.