You heard him, so no more players in (nor anyone getting replaced expect by sudden RL situation which would render them unable to post).
I work char today piece by piece when I can. So far I have build him as either Rogue 3/Bard 2 or Rogue 2/Bard 3 base before entering Chameleon. Going for changeling rogue alternative class features from Races of Eberron (quicker gather info, quicker sense motive/mood, taking 10 to all social skill rolls).
Another alternative is Rogue 2/Swashbuckler 3 so I have solid roguish scoundrel combat base but bardic music gives lots of variable uses with right feats (and able do minor magic stuff outside chameleon caster powers is nice and so is bardic lore to able blend in to my roles).
So kind undecided what I should be before entering Chameleon as you can qualify from most classes enter it. Only must haves being 8 ranks in bluff and disguise asking rogue (or bard) levels somekind.