Dwarf - Monk
I've played this combo twice and it's exceedingly excellent each time.
Bonuses:
Darkvision
Stonecunning
Medium (thus medium unarmed strike dmg)
The +2 Con, -2 Cha is great for sturdy monks.
+2 Saves vs. Poison adds to already great monk saves.
+2 Saves Vs. Magic add to already great monk saves.
+4 Stability bonus vs balance and trips are great for tripper monks.
+1 Attack Vs. Orcs and Goblinoids
+4 Dodge AC bonus Vs. Giant type monsters.
+2 Appraisal, Craft checks with stone and metal.
The lawful nature of the dwarf lends itself brilliantly to the gruff monk type.
Negatives:
20ft. Movement
As you can see the trade-off is amazing, and since the monk's speed increases as the character levels you quickly bypass the only negative to this synergy. Do remember however that the dwarf does not lose movement speed while wearing medium/heavy armor or under a medium/heavy load, thus making a dwarven monk the ultimate pack mule for your party.
The dwarf also has a great option in that it has Racial Familiarity with Dwarven waraxes and urgoshes and if you are lucky enough to get a Ki-Focus version of those weapons they can improve your low level damage output and your unique monk deliverables.
Also remember that since the dwarf is a medium creature that once you hit 6th level you qualify for the Improved Natural Attack feat from the Monster Manual I, which increases your damage by one size category to
Large (2d6 at 6th, up to 4d8 at 20th!). If you have a caster in the party that can buff you with
Enlarge Person then things get just ridiculous with you doing
Huge size damage.
If you focus on any stat with a Dwarven monk I'd go for WIS and STA as you can take Intuitive Attack from BoED and use your WIS mod for your attack roll which augments your 3/4 BAB progression nicely while allowing you to avoid some MAD (multiple attribute dependency) issues. Wisdom is the number one stat for a monk, as it increases AC, Saves, Stunning DC's, and can increase your attacks with the right feat.
Remember to max out tumble, as with it you can move through enemey spaces, avoid AOO's, immediately stand up from prone, move up walls, and all around accent what is easily one of your best class features:
mobility.

I love this, and If you can't tell it incorporates 2 of my favorite things in D&D!