My plan is to scout for the enemy and then use my 19 str to do some serious damage in the first round. I'm not much for re-hiding and then jumping back in so I'd want a build that would give me some survivability after the initial strike. I'm thinking of specializing in shortswords (Rogue Re-balance Sword of Backstabbing looks cool) and daggers (Dagger of Venom) but I'm not sure if I should do single weapon style for the increased crit-chance and AC or go with two-weapon style.
As far as thief points go, keep in mind that I will be the only thief class in the party as I've modded Imoen into a bard. Should I get lockpicking and find-traps up to 100 first or should I focus on hide and move silently? If the latter, how high should I increase them?
Thanks in advance for the help guys :)