DIY protein skimmer plan?!?

[Fish on]

Would anyone have a good plan for a DIY protein skimmer?
I have looked at the DIY page here but I found the first one to be to tall for my needs.(or should it be so tall for a 55gal?)
thanks for any help!

[gcvt]

Here's a couple links you may find helpful:

http://saltaquarium.about.com/cs/skimmersdiy/index.htm
http://fins.actwin.com/diy/skimmer5.html