On Tue, 3 Feb 2009 23:49:48 +0000 (UTC), the infamous
(Edward A. Falk) scrawled the following:

Well, for relatively simple work, there's xdraft:

http://xdraft.sourceforge.net

Still a work in progress, but I've done some useful work with it.

Still waiting for a Linux version of Sketchup, myself.

If I might alliterate, won't Wine work?

--
Never tell people how to do things. Tell them what
to do and they will surprise you with their ingenuity.
-- George S. Patton