MAC is where it's at for the color ranges. I went to Nordstrom for a makeover with neutral colors, so they definitely have a good range of sedate shades for the office. I couldn't afford to get the lipglass, mascara, eyeshadows, whitepencil, and bronzer that they suggested, so I kept the card and will get each piece as I get more money.
I have sensitive skin, and I haven't broken out yet!
Clinique is also really good, especially for those with sensitive skin or allergies like me. Their Dramatically Different Moisturizing Lotion is excellent!