Is it possible to change the gray color scheme of Lion? Seems to be too much gray in Lion.  Status bar, title bar, scroll bars, links bar, tabs, everything blends into itself.

I am guessing that is part of the design. Any options to changes these?
You can make a subtle change away from gray shifting towards blue with theOS preferences. Go to Apple Menu -> System Preferences...

Then click on General in the upper left



And then select Blue under appearance