After reading lots on the DDC pump it looks like the best option.
Here is a rendering with the DDC pump and a Res mounted above it:
I will install a filler hole at the top.
Large image:
http://www.zapwizard.com/projects/wood/plans/wood-4.jpg
I hope to mod the Res to allow for direct flow into the pump without a 90degree bend.
You can also see the drawer-rails that will allow the entire PC to pull out of the case.
Usually if I can make it in 3D I can convert it to real life:
3D:
http://www.zapwizard.com/lanpc/Angle.jpg
Real:
http://www.zapwizard.com/lanpc/HighRes/Connectors.jpg
3D:
http://www.zapwizard.com/ATI/pc-front.jpg
Real:
http://www.zapwizard.com/ati/highres/02-Angle-Big.jpg
3D:
http://www.zapwizard.com/projects/Kingston/Plans/3d.jpg
Real:
http://server2.uploadit.org/files/zapwiz-Cimg0165.jpg
3D:
http://www.zapwizard.com/projects/wood/plans/wood-4.jpg
Real:
http://www.zapwizard.com/projects/wood/plans/real.jpg