wow, thanks for the responses. Some good info...
ECU I have thought often about moving my PSU. My question is how is it supported up there? Why didn't you put the hard drives above the PSU? Cable length issue? I'll have to see how my radiator compares to a the fan size before i can determine whether a simple cardboard box would do the trick. otherwise some adjustments to a box would probably work... as i said i'm not too concerned about looks, as long as it's stable. Tygon is still a little pricey.... but I may splurge. I will be buying a quiet 120 mm fan as well as an 80 mm one for my PSU. I was hoping my pump would fit on the floor of my case but I do have room in the CD rom bays so that is a good back up. I like your set up very much.. good use of the space the Q500 gives you. Do you happen to have any photos? especially of your airtrap? I will take some more measurements of my case when I get home. You've given me a lot to think about though, thanks.
webmedic - if you are able to sell it at a reasonable price in the next couple weeks then I will consider it
Haddy - I have seen that block, I'm still waiting for some details on it's performance. Of course the mixing of non-like metals does disturb me a bit....