I'm mainly choosing Half-Elf for:
1. Flavor (oh how I love the interbred, attractive outcast. )
2. +2 Willpower (Dual Mind)
3. +2 Initiative (Elven Reflexes)

However, even losing one feat I'm feeling the hurt, especially since it's looking like I'll be pulling face duty (not that I mind.) As for Halfling, I'm not sure I could do the race justice with regards to roleplaying.

Here's my current plan (barring the need for a more face-oriented path, or something like Master Alchemist):

Spoiler
Show
L1 - Rapid Reload (Pistol)
L3 - Point-Blank Shot
G4 - Deadly Aim
L5 - Precise Shot
L7 - Dodge
G8 - Improved Critical
L9 - Mobility
L11 - Signature Deed (Focused Aim)
G12 - Deft Shootist Deed
L13 - Rapid Shot
L15 - Weapon Focus (Pistol)
G16 - Snap Shot
L17 - Improved Snap Shot
L19 - Combat Reflexes
G20 - Impact Critical Shot


Really, the only reason for keeping Rapid Shot is to qualify for Snap Shot, then into the Combat Reflexes approach, since I don't see much else in the way of combat-prowess options. I think that's ultimately the goal: be a pretty good face, RP-heavy, then shock and awe on the battlefield.