Make-up Forever HD or Laura Mercier Silk Creme foundation
I also have pretty bad acne and I use the Makeup Forever HD. It does not break me out and I love coupling it with the full coverage concealer. If you are nervous, which I'm sure you are because I always was, Sephora is awesome about samples. Ask if you can try a sample of the HD and take it home and see how you do. That is what I did with that and the finishing powder. I've always had very sensitive skin so I can sympathize completely!
Make sure to pair your foundation with a barrier repair or a primer (I like Cover FX [the acne one] for primer) so that your foundation stays in place all day!