Looking for PC RPGs with more talking and persuading than fighting.

[Bat Vader]

I'm sure it has already been stated but Alpha Protocol I think would be something you want to play.

Depending on who and how you talk to them you can make powerful friends or enemies.

 

[ninja666]

Since my last post in this thread, I've reinstalled Fallout 1 and so far it's proved to be exactly what I was looking for, so there's no need for recommendations anymore. Negotiating with Raiders in order to

Spoiler

have them release Tandi from captivity

and succeeding at it was extremely satisfying.

 

[Anti Nudist Cupcake]

Play the wolf among us. Heavy conversation-oriented. I chose to beat the game sparing everyone whenever the option came up. Never killed a soul.