bigben2k
I am disappointed in you

... recommending a fan with 55 dba noise output. Half the reason we go to water cooling is to get rid of the fan noise.
I agree with bigben2k that a heatcore is the way to go. If you absolutely do not have the room then I would suggest that your temps are not that bad. Unless ypu plan to OC the 2400+?
I have 2 BIX's in my system and they are performing well. The spec's say that the BIX 919w whereas the BI Prime probably does about half of that. I have the 2 BIX in 2 separate loops cooling a P4 2.66 @ 3.1 and a mildly OC'ed Radeon 9700pro.
The load temps are
Air 20C
Water 25c
CPU 32C
CPU 31C
Saying all this, I wish I had purchased heatercores instead. I am sure that my temps would by 3~5c lower.