I had the same dilemma....I just did the plumbing on the 180g this afternoon and I went with clear tubing.
It was immensely easier to put together and can be taken apart if I need to. You can also use PVC
and have union fittings so that you can take off parts of the plumbing but to be honest I just wanted something simple and beat. I've also heard that the PVC
can rattle so I decided to skip that.
I'm gonna post pictures of what I plumbed today on my thread if youre interested to see how it came out.