After having tumbled about with a variety of different ideas for my upcoming character, I have decided to concoct a Shadowdancer/Mage. Not necessarily the most original idea, but there are a few aspects of this idea that makes it a little tricky (at least for me). So I'm hoping for some creative input.
The biggest question is of course when to dual class from Shadowdancer to Mage. As I see it I should dual at level 9 or 10. 9th level grants me a backstabbing multiplier of x3, and 10th level grants me another use of Shadowstep. Do I need another use of Shadowstep?
Either way the character will stay a Shadowdancer until the very end of BG1 or the beginning of BG2, and after pressing the Dual Class-button he won't reboot his SD card before well into BG2. From a roleplaying perspective I think I should wait until BG2, arguing that Irenicus' pretentious show of magical prowess become kind of a catalyst for my character's sudden lust for arcane powers (or whatever).
Also, this combo will suffer a severe lack of proficiency points. Now, to maximize backstabbing I know that I should probably use a zweihander, but power gaming isn't really the most important part for me.
I think Single-Weapon Style looks really classy, so that's probably what I'm going for. I suppose the increased critical chance is a good argument as well. But I have absolutely no idea which weapon I should be using, so I keep skipping between the different options, re-pre-generating my character again and again.
When it comes to ranged weapons I think I will be using a crossbow (silently pretending it's a hand crossbow), to allow room for other (real) archers wielding short- and longbows.