I've been a huge fan of MAC Studio Fix powder foundation for years because it works wonderfully with my skin type, which is a combination of normal to oily. The foundation goes on easily, it makes my skin appear smoother and even toned. I'm also very impressed with the shades of there makeup selection because it matches perfectly with my complexion.
I love that the foundation isn't heavy, doesn't cake up through out the day, and it lasts for a really long time. On average I can use this foundation for at least a year, not sure if anyone else feels the same but I just don't need to apply much. I'm very particular about shades and I find that it's really difficult to find the right shade for darker complexions. I use NW45 which I purchase whenever needed from my local mall.
I would definitely recommend MAC Studio Fix Foundation. There is a great selection of shades for all complexions, the makeup blends well, looks great, and you really get your moneys worth. Check back for more reviews on other MAC products because I love so much of there cosmetics.