Haha I must be in the minority, because Bare Minerals just didn't work for me. I was really disappointed...it looks like it works well for others!
I am a big MAC proponent. I had a MAC artist do my makeup for my wedding, and after having their products, I never use anything else. I use smaller than a dime-sized drop of their foundation every morning because it covers so well. I don't even have to use a powder to set it. As for their eyeshadow and lipstick, it will last for years because it is highly pigmented. Don't get me wrong - I don't use the makeup like the girls on their website. But I love love LOVE their stuff. It seems expensive (about $14 for eyeshadow, $25 for foundation), but when you see how long it lasts you, it pays for itself. I used to use CoverGirl foundation but I would have gone through at least 3-4 bottles (which is about $20) in the one year that I have had my MAC foundation... and I've only used about half of the bottle.
If you do buy MAC, I really recommend splurging and buying their
small contour brush. It says it's used for powder and blush, but the MAC artist I worked with taught me to use it as a buffer for foundation. I apply the foundation to the brush and buff it onto my skin. No lines, perfect blending every time!
some of my favorite products...
Studio Fix Foundation
Swish eye shadow
Hue lipstick