See my Wizard1/Fighter2/Monk5 build attached. He has Wizard1 for mage armor and casting simple arcane stuff (the party didn't have any mages), Fighter2 for 2 levels of good BAB and 2 feats, and the rest in Monk. The speed is great coupled with the high tumble skill, and with Combat Reflexes and Great throw he can toss people down with AoOs. His Str isn't that high since he has other duties with the party, so that could be rearranged for your PC. It was done with a 32-point build.
[EDIT] Attachments aren't working on ENWorld today I guess... so here are the feats...
Automatic feats/abilities:
Improved Unarmed Strike
Still Mind (+2 vs. Enchant)
Evasion (Save for no damage)
Scribe Scroll
Summon Familiar
Ki Strike (magic)
Slow Fall - 20 feet
Purity of Body (no diseases)
Chosen:
Stunning Attack (DC=16, x3)
Expertise (trade BAB to AC)
Dodge (+1 AC vs. 1 opponent)
Combat Reflexes (3 AoOs)
Improved Trip (+4 trip)
Great Throw (toss opponent)
Defensive Throw (AoO trip)
Deflect Arrows (Auto 1/rnd)
Not really a grappling build, but you will need the Improved Unarmed Strike and Improved Grapple to start doing damage to your opponent once you have them down. I went with this build because it allows him to deal with multiple opponents and can throw them over balconies, off cliffs, onto flaming areas, into the path of a wagon, etc. It's really fun if not dangerous to be in the thick of a fight eventhough his AC goes from the worst in the party to the best with the Mage armor. Again, add in the tumble and high movement rate and you become a mage/archer slayer pretty easily.