I agree with Zeta - better to go for 8 skill points/level (same as Ranger by your rules... unless they count as a "caster") and full BAB.

Incidentally, you may want to fix some of the monk weapons. I have a house rule that you can sacrifice off-hand strikes while dual-wielding to attempt a disarm or a sunder as if using a two-handed weapon (making the Sai and the Nunchaku have a point to their existence). You may want to make this a two-point skill trick, but it certainly isn't worth a feat.