I would recommend the lm6132 for dual and the 6134 for quad. I have been using them recently and they perform pretty much rail to rail, which is great for single-ended low voltage supplies. I am currently using 4 6134's in a Single-ended supply IR circuit. They are not cheap but you get what you pay for.
EDIT: Hero, won't the voltage divider you have shown in the 2nd circuit for the Virtual Ground get screwed up from the parallel cap and resistor? I always use an extra op-amp set to output .5Vcc for my Virtual Ground, cause it needs to be able to sink current.