As far as blocks go, the EVGA cards are all reference design, and 660Tis use the 670 reference blocks (since both use the short PCB, unlike the GTX 680). You can see what EK has at http://www.coolingconfigurator.com, to get an idea of what the blocks look like.
Your other option is to use universal waterblocks, which are still very good performers, and give you a lot of flexibility when upgrading. I used to be (and hopefully will be again) a yearly upgrader, so not having to buy new blocks all the time was great and made selling the old cards much easier.
I have already chosen some parts but I am trying to decide how much rad I need to ensure proper cooling. I also want to pick the right ones. I have enough space for a thick 120x3 rad on a push/pull in the front of my case and another 120x2 or single 120 rad.
The 660Ti has a TDP of 150W, so you'll be ok with a single EX360 if you want. With ~2000 RPM fans you should be able to cool ~400W and maintain an ~8C delta.
More is always better though, and would definitely be a good move if you want quieter fans and/or overclocking headroom.
The other components look good. The pump should last a good long time.