Well, I've finally decided to try water cooling. I have a few questions about it that I'd like to know. I haven't ordered the stuff yet so there's no rush.

1. Is a chipset block worth it? I'm definetely getting a CPU (Silverprop Cyclone 5) and GPU block (DangerDen GF4 waterblock). Should I add a chipset block in there as well?
2. Should I run CPU -> GPU, GPU->CPU, or the CPU and GPU in two separate lines from the pump?
3. Anything special I should know before ordering or setting up the system?

Here's what I'm going for:
Eheim 1250 Pump
Danger Den GF4 Waterblock
Dtek Pro Radiator w/ Shroud
Silverprop Cyclone 5 CPU block
Blue Acrylic Danger Den Resevoir
Tygon Tubing
All inside an Ice Block Z1 case from lovermecases.com

Thanks