Monk/Samurai = I am turning Japanese!
<edit>well, CW Samurai stinks on toast. OA Samurai is a fighter with fewer feats and a class feature that isn't very helpful for an unarmed character.
No argument on the CW Samurai, but some do like it.
However, the overall combo with the OA version is a little better than you'd think at first blush (esp. once you factor in the OA 3.5 update in Dragon #318 by OA designer, James Wyatt).
This is because there are feats out there that expand the list of Monk Weapons, and at least 1 class (Sohei) and one PrCl (Shou Disciple) that FoB with weapons.
So, a Monk/Samurai gestalt using such a feat (or additional multiclassing) would have a fairly nasty weapon at his disposal, fully usable with the features both classes bring to the gestalt.
See also:
http://www.enworld.org/showthread.php?t=221182&page=1