I'm actually getting really intrested in this build / character idea. Someone with lots of mindgames but avoids direct combat and violence. Some things I've noticed:
Cabinet Trickster is cool, though the save DCs are weak (can be buffed, see below), but for practical combat use you basically NEED Mindspy levels from C.Warrior as well. They do synergize great, however. Warshaper is also nice for adapting your form on the fly and general combat usage (I know you don't care about combat, but just getting crit immunity by way of constantly shifting organs is interesting, don't need to take all 5 levels, or even 3). Problem is, they all qualify about the same time. CT you need 9 skil ranks, so entry at level 7+; Mindspy you can actually get in at level 6 slightly before CT...except it requires detect thoughts, which you're getting from CT... Warshaper's only hurdle is the BAB +4, so if you just did full BAB classes you could go in at 5, grab your 2 levels, and move on to CT. Unfortunately, any lead in you'd want for this type of build not only isn't full BAB, it's actually decimating its BAB trhough medium BAB multiclassing.
Which means you basically just have to do Factotum 3 / Rogue 2-4 / Marshal 1 and only after that get to the cool, build-focused stuff.
Daunting Prescence feat (Libris Mortis): The Fear Handbok rates it poorly because it is a standard action single target and just makes the target shaken. But I like, it, it's ranged (30 ft), lasts for minutes, has a respectable save DC, and stacks with pretty much every other source of fear there is for escalating fear.
Mindbender Prestige Class (C.Arcane): IF you can use Practiced Spellcaster/Manifester to count as a 5th level arcanist to meet the pre-reqs, this is possibly worth dipping Beguiler or Telepath Psion (using transparency rules), even though the two levels will utterly annihilate your pathetic BAB. Both classes fit with the build well thematically, and this gives you a constant telepathy ability to 100 ft and qualifies you for...
Mindsight feat (Lords of Madness): Now your telepathy is radar to auto-detect any intelligent creatures within its range!
Veil of Allure (14,000 gp, face slot) from MIC adds +2 to save DC of all cha-based supernatural abilities. This buff Cabinet Trickster's Thought Tricks, Detect Thoughts ability, the Daunting Prescence feat, and possibly more!
Taking mind games to a whole new level is the PHB2 Fade Into Violence feat. Its restrictions are insane, but you can actually meet them and STILL be mind reading and thought trick dazing/stunning/confusing people each turn, since you're not "attacking" or "using spells." It's still pretty underpowered, but I like the flavor.
Feat synopsis:
[sblock]Choose an opponent as an Immediate Action. For the current encounter, if that opponent is threatening you and an ally of yours, you may make a Bluff check opposed by your opponent’s Sense Motive check to make your opponent attack your ally (+4 bonus on your Bluff check if your opponent is a larger size category than you).
You may only use this ability if you are wearing light armor or no armor, have nothing in your hands, have made no attacks, & have targeted no enemies with spells. Once you void any of these conditions, your opponent sees you as a threat and can attack you normally.[/sblock]
