my mum has dry skin and uses MK. buttt I have combination skin, just like you, and I have a problem controlling oiliness and I have large pores. I use CG's TruBlend, the liquid formula [though Im investing in the whipped pretty soon], and my shade is Toasted Almond.
it gives great coverage, and topped with powder [I use Revlon's Soft Flex, atm], it lasts me all day. it doesnt clog my pores or make me break out, and it doesnt rub off on my clothes, which is a plus, because I wear uniforms at school.
I recommend this for everyone, because some brands, like maybelline, are only made for girls with perfect skin.
oh, and one more thing - I live in Louisiana, where its like, hella humid all the damn time [you wouldnt believe the rain we've been getting], and if you use a decent powder, it wont melt; but if you're gonna be outside for ages and ages, and if you sweat a lot, youre done for until you can retouch in a mirror.
hope that helps!