Mustanggal,
I haven't tried any but the bareMinerals brand. I have heard of others and some that are more expensive, some less. If you find one you like that is less expensive, maybe you can share it! The powder from bareMinerals lasts a LONG time so if you invest in it, it will last.
You really only need the powder with color in it,(22.00)
and if you want a blush, they are about 14.00 and eye shadows are about 12.00. You can get the Mineral Veil for on top of the color if you'd like, or not! You can buy the kit, which is the best deal because you get the brushes and everything to get you started! It gives you two jars of color and the brushes for a blush it includes and a brush for the powder for your face. It's a good buy.
If you google it, you can find the kit and again, that's the way I'd go. One investment is all you really need to make and that is still lasting me although I went to get a new blush just to try another one.
Good luck!
dancer9