I use Ben Nye as well. I usually use my own foundation underneath and put the Ben Nye over it. For everything else (lipstick, eyeliner, mascara, blush, eyeshadow, etc.), I use cheap drugstore makeup because well, it's cheaper!
http://www.bennye.com/
"When you're a Jet, / You're a Jet all the way, / From your first pirouette / To your last grand jete." --Brian Kaman