I have just gone through the reviews on another site I post on xtremesystems and found a review of the same kit as previously posted apart from it only incorporates a dual 120mm radiator. In someways this would be better for you as you could then get a second 240 rad which would be plenty for your total cooling requirements.
http://www.xtremesystems.org/forums/showthread.php?t=268422
Hope that you find this helpful.
Very!  Helpful that is...  I do have the H70 in hand though and now that I have finally got my head together with it and actually read the directions   
 I guess I'll have to go with it until such time that it proves to not work as well as I want it to then it will probably go the eBay way.   I've had quite 
a time since first starting to water cool back in 2008 but it's a long story and it's late over here.  Or should I say early?  LOL...  The end of the 
story is that the Striker II Extreme I was using was overheating because of the 2 overclocked GTX 480's mainly but I had a Bitspower after 
market NB/SB water block on the board since the water block that came stock on the board began deteriorating and screwed a lot of water
cooling equipment up in the process.  I had ordered the H70 for that rig for an Intel QX9650 so that I wouldn't have so much running on the same 
loop.  While I was tearing things down and after I had already ordered the H70 I decided since the Sandy Bridge motherboards were coming back 
out finally I said the heck with it and bought what I would need for the socket 1155 set up and here I am.  I have an older Lian Li Full Tower 
that I will be putting some of the older parts in with that Asus board and two 9800GTX SSC's in SLI for a side system but at the moment there is
no hurry because I went nuts over Christmas and awarded myself a sweet little gaming laptop.  That's what I am on right now and it is a Toshiba
Qosmio X505-896 which is fairly decent for playing games on but I am far more interested in getting the socket 1155 set up going and trying to
overclock the daylights out of that 2600k.   That is yet another thing that I am still learning about but hey, you really can teach an old dog new 
tricks.   

   I do also have a Koolance Exos 2.5 external 3 fan rad/res/pump assembly all in one now but even that wasn't working like Koolance
said it would and cooling everything I had in one loop and as I said earlier that is why I had already ordered the H70.   LOL, I know you guys
really didn't need to know all that but I guess all that to say that I didn't especially order the H70 for this build and since I have it I might as 
well try it out for a while.