Ok i have since answered my own question about this from a bit more investigation but i still have a few more queries that i would like some help with.
Firstly i guess i am going to need either 2 HC's or 2 radiators with either a single or dual loop setup. I would much prefer to get away with everything in 1 loop if i could as it would a little bit cheaper and also cut down on some clutter in my box.
I will be overclocking both processor and video cards as far as i can, using fan controllers for when i leave it on overnight on low. Using a v2000 lian-li case i could place 1 rad/hc just above where the psu sits, could fit 2x80mm rad there, and also one on the upper level near the mobo, this would be 1x120mm. This one is where the exhaust fan would sit normally. Can anyone suggest the most approriate hc/radiator for my needs, bearing in mind that i need 2 working together and i don't have the tools for modding nor do i want to once i get this case LOL. I was also thinking of 1/2" tubing, but would i be better off with 3/8"
Here is a pic of the v2000 case so you can get an idea of the space and layout i am talking about if you aren't already aware of this case.
http://www.cluboverclocker.com/revie...2000/page2.htm
pump>rad1>cpu>gpu1>rad2>gpu2>res/t-line>pump -- does this look, sound about right??
I realise there's a wealth of information on these threads and i have spent a decent amount of time trying to increase my knowledge as fast as i can but everybody has a different view and i would appreciate everyone's idea as to how i might get there w/out modding my case and having a relatively straight forward install.