Don't be so quick to use make-up. There's a lot of crap in makeup that can make your otherwise decent skin worse. I'd invest my money in something to take care of your skin insead. (There's nothing wrong with your wanting to wear make-up, of course, and you might not have problems with foundation or concealer if your acne isn't severe, but mine is moderate to severe now...and I HATE it. I hate how it feels on my skin. I'd rather take care of the acne than ever wear make-up again but I realize that's easier said than done and I don't know what you're doing now in your skin regimen.
Personally, even on meds and having used every other topical treatment, acne-friendly moisturizer, and astringent other the sun, I'm still going through a stage where everything breaks me out. Be aware that just because horrible companies put "non-comedogenic" on their labels it doesn't mean much.)
Actually that goes for primers too. Watch out for some of these--I think ethylhexyl palmitate and isopropyl myristate are the most common offenders in foundations, but there are more.
http://facerealityac...re_clogging.php (Unfortunately this list is a little hard to read.) Try to find something that doesn't have comedogenic in the top ingredients--I've accepted all make-up has a few in them. (I just found out even stuff for oily skin like Revlon Colorstay is full of junk like sodium chloride--huge bummer for me. It also looks pretty bad on, but this is the best I can do now--just an example of how even make-up intended to help those with problem skin makes it worse, not better.)
Covergirl makes a decent tinted moisturizer with better coverage (CG Smoothers--but then, I haven't used it in a while, and I was on Accutane when I thought it was nice). They also make Clean Foundation (look for fragrance free). Neutrogena has some foundations I'd look into (SkinClearing Foundation), Almay makes Clear Complexion...those are foundations I'd like to try when I finish with this. If you can spring for something at Sephora, try it, but I'd look up their ingredient lists and product reviews first.
Honestly, I don't even think you need foundation. Just use concealer, a little powder on your shiny areas if necessary (Physicians Formula makes a mineral powder without bismuth oxychloride), and get some good make-up brushes. E.L.F (eyeslipsface--sold online and in Kmarts where I live) makes a great cheap tiny-head concealer brush to cover pimples easily, and I bought a bare escentuals concealer brush for cheap on ebay to apply foundation, but CVS Essence of Beauty sells okay brushes too.
If you go the mineral make-up route, try to find something without bismuth oxychloride. No matter what you try, before you spread a new product all over your face, do a patch test.