This thread has a lot of good ideas for the build you have in mind:
http://boards1.wizards.com/showthread.php?t=856505
and this one:
http://boards1.wizards.com/showthread.php?t=816872
I think I favor this one from jstorrie:
Human
14 16 14 14 8 8
1 Rogue: Power Attack, Telling Blow, Trapfinding, Sneak Attack +1d6
2 Swashbuckler: Weapon Finesse
3 Fighter: Exotic Weapon Proficiency (Courtblade), Weapon Focus (Courtblade)
4 Swashbuckler: Grace +1
5 Rogue: Evasion, Sneak Attack +2d6
6 Rogue: Daring Outlaw, Sneak Attack +3d6, Dodge +1
7 Fighter: Power Critical*
8 Fighter
9 Fighter: Weapon Specialization, Weapon Mastery
10 Swashbuckler
11 Rogue Uncanny Dodge, Sneak Attack +4d6
12 Swashbuckler: Improved Critical (Courtblade)
13 Fighter
14 Fighter: Slashing Flurry
15 Swashbuckler: Staggering Strike, Sneak Attack +5d6
Power Critical's value in the build depends on your equipment access. If you have a great weapon for hitting criticals with (say, a +1 Sacred Keen Elven Courtblade) you might prefer Power Critical. If you don't have access to good shield modifiers, you might prefer to retrain once you can reasonably afford a +3 or +4 buckler, though note that penalties to hit translate through Power Attack into less damage per round. If your weapon is turning out to not be great for criticals you can retrain into Staggering Strike early on as well. And, of course, if you are able to buy keen that frees up the Improved Critical slot, so you can potentially have all three.
Daring Outlaw is probably actually one of the least important parts of a Daring Outlaw build. It's just that it fits so comfortably into the feat progression of a trapfinding/tumbling dextrous fighter. The real power elements are Power Attack/Finesse on a courtblade and Weapon Spec/Mastery/Insightful Strike for large amounts of bonus damage; really this build is more about being a Fighter/Rogue with a courtblade, and Swashbuckler just tunes that up a little–the aim is to get 2d4+1.5 Str+Int+4 going on a 15-20 weapon, with high mobility and AC and good hit dice. With the focus on Dex and the Swashbuckler Dodge bonus and potentially a shield bonus from your buckler, your AC is decent enough to advertise as a tank despite wearing mithril chain shirts.