Make sure you take dodge as your first shuffled feat, and designate the DM as your opponent. Beware if he has Iaijutsu Focus as a class skill, as books will be heading in your direction.
Please only save that for the cheesiest of games.
Are we stuck with 38 feats as a fighter? Fighter 20 isn't much to work with. Even with 38 feats, still not equal to, say, a warblade, much less almost any caster.