Why Staff????? Sword is much better for Bard, and if you're a Mook, you can use the Giant's Sword if you change class later.
oh, maybe Scott said staff---
I have never agreed with any of his development plans, anyway...
Solos almost MUST have Stealth, and for that a Rogue or Ninja level is nice, usually L5 so you can survive the Seekers shooting at you (see Flamestryke's site about training techniques)
http://www.flamestryke.com/wizardry8...trykes_w8.html
As far as your combat skills, 50 should be enough, and you can work them up just as well if you are Bard or Rogue. I'd stay a Bard to L4, then go Rogue for Stealth (Shield will go up with Stealth, if you make sure your shield is armed) and practise everything, including Throw/Sling so you can use the bombs and powders more effectively.