Hello, I've experimented a little with the DrFred's GNU indent settings, they were good, however I advanced them more and found out almost perfect set of settings which suits our proposed/official coding style (the only debateble part was using TAB vs. SPACEs, but for some areas like ntoskrnl TAB-based indentind is de-facto not used at all).
For further info / remaining problems, look to the following URL:
http://www.reactos.org/wiki/index.php/GNU_Indent
WBR, Aleksey Bragin.