Thank you for making a new thread.
The first thing you need to decide is what size of tubing you want to use. I was looking at the swiftech page and it says if you want to upgrade to larger tubing you will need this adapter for the outlet port then you screw a barb into it. I suppose the inlet port is just a standard G1/4" barb, you'll want to check that.
http://www.swiftech.com/G1/4-ADAPTER.aspx1/2" x 3/4" is the largest tubing available and makes your system look beefier, they also say the larger tubing helps increase flow but how much I'm not sure. The fittings and water blocks is what restricts flow.
So you'll want to use barbs and clamps on the swiftech h240x and if you want you can use compression fittings on the water blocks for a nicer look.
You can also use uv tubing and uv coolant in the color of your choice and add some uv lights if you want or just use plain old distilled water, the choice is yours.
Tubing choices can be 3/8" x 5/8" or the largest 1/2" x 3/4" this will determine what size fittings you'll need.