+1 for Primochill tubing, very good tubing really, I think it's better than Tygon too.
+1 on Distilled Water only, especially if you get Primochill tubing, some sources say primochill tubing have pre-applied biocide inside the tube..
I know the bling bling factor is important, but honestly when your side panel is closed, who's gonna look inside really, and then you also need UV fans/or a uv cold cathode tube, which is extra cost to really see a UV effect, personally I much rather spend my cash on some real good radiator/case fans, then to spend on some expensive UV fans that are gonna suck on a radiator.
I plan on going with the fesser colored tubes, and just disstilled water.
As far as UV fans - I wont be using any. I'll be buying LED strips (UV) from here and wiring them up to a spare molex since they run off 12v. Currently have 2 4.7" orange ones in my base right now
- Also, these things are amazing and fully waterproof, I originally had them in my car but took them out, when I first got them I stuck them in a bottle of water (while turned on) and left it for 24hrs - these things are magnificent, so I plan to put the orange ones in my reservoir to get a nice light show in there.