| The restrictions are there because there is no Superman
Intelligence has no effect on bard spellcasting. Giving your bard an INT of 12 will give you 3 skill points per level and nothing more.
Dualing for backstabs is kind of pointless, since you only get one attack that counts as a backstab. Once you take a swing and give yourself away you stop backstabbing and start fighting. The hit points, attack bonus and # of attacks for this character aren't going to be very good for someone who's going to be surrounded a lot, regardless of your protections.
With a character that's rogue3/fighter1/bard(the rest) your race won't matter. You''ll have the 20% XP penalty. The lost XP is worth a lot more than the weapon proficiencies the fighter level will give you. The XP penalty will make a human character gain 4 levels while everyone without the penalty gains 5, and it'll be worse for a drow because of the drow's effective level being 2 higher than actual.
If you level like THIS you won't get the XP penalty IF it's a human or half elf:
Rogue 1, Fighter 1, Rogue 2, FIGHTER 2, Rogue 3, with the bard levels however you want to add them. Humans and half elves are the only races that can have a bard as their favored class, and favored class doesn't count when figuring the XP penalty, so the bard levels will be ignored in deciding whether or not to apply the XP penalty and the rogue/fighter levels won't trigger it either.
If you want a drow MALE, dump the bard levels for a wizard-which is going to give you much better spellcasting. Assuming you go with a full party, with the 30 level cap a bard will never cast 9th level spells, and with 2 levels in fighter and 3 in rogue you should max out bard spells at level 7 (unless you go with your plan of 3 rogue and 1 fighter level, where you have the XP penalty but you get ONE 8th level spell). Plus the XP penalty might be applied in the same way as the effective level of a drow, in which case you max out at 435,000 XP effective, and around 350,000 actual which will limit you to around 27 total levels (that's around 22 bard levels which is what you need to cast ONE 7th level spell as opposed to four 9th level spells with wizard levels). If the level penalty for Drow takes away 2 more levels you still get the high level spellcasting as a wizard. BTW-the max only applies if you play a second time in Heart of Fury mode. If you go with a bard and take the XP penalty you WON'T get 4th level spells the first time around, you MIGHT get 4th level spells if you take the second fighter level and avoid the XP penalty. If you take wizard levels instead of bard the same is true but for 6th level spells.
Giving your bard a WIS of 3 will give you a -4 penalty on will saves which will guarantee that you'll fail them most of the time through at least the first half of the game The only way around it (and maybe the only way to not fail those saves the entire game) is by getting feats (Iron Will, Bullheaded, Discipline and Heroic Inspiration) that specifically raise your will saves. If you really want to use your feats for combat purposes you might want to put more points into WIS, unless you don't mind failing your saves for charm, hold, etc.
A level 3 rogue has a lousy sneak attack, getting an average of 7 HP extra damage(+1d6 at 1st level, additional 1d6 every 2 levels, not multiplied on critical hits), and evasion (I assume you mean evasion and not the Dodge feat which is available to anyone with a DEX of 13+) only works for Reflex saves and only gives a benefit if you make the save.
Spellcraft helps nobody learn new spells and neither does concentration. Spellcraft helps you identify oponents' spells that are being cast and concentration makes it more likely that you'll get off a spell when you take damage during the casting. Bard spellcasting is about the same as a Sorcerer, just a lot weaker.
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"Winston, if you were my husband I would poison your coffee." Lady Nancy Astor
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