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These are very very nice designs my friends. Very well done, I think you would be fine using any of them. The third and fourth designs are my favorite but the the second design comes in a close second. I would use the second design as it is different from most designs out there for the subject matter. You would be fine with using any of these though. VERY WELL done!!

THanks man! I'm working on a sample build of the homepage for our Sr. Management at:
http://static.helpcurenow.org/test/redesignMockup/redesignsamplebuild.html
(except you have to add underscores between redesign, sample, and build since this forum seems to be removing them in favor of italicizing the middle word)