Mac,
You can go to a store and ask them to help you choose which one would work best for you. Then a finishing powder ontop, and it'll keep you dry. Trust me, I have oily skin and it works wonders. (also, Covergirl makes good pressed powders that are IMO just as good)
You'd pay a pretty penny, but it's amazing quality.

I don't use face wash, because I break out so easy..so to clean my face I use baby wipes It works wonders, and makes your skin soooooo soft (and it's not expensive) the Aloe smelling one by Huggies smells AMAZING. lol..
*Takes off makeup too, and wont irritate your eyes/skin*

Origins have really good skincare products. It obviously depends on how much you want to spend but all their ingredients are natural so they don't cause reactions with the skin. They have certain washes that are great for oily skin. I have combination skin but mine can be quite oily so I use a wash by Origins called Checks and Balances, it's amazing.
For foundation I think Bobbi Brown is always good. They have a foundation called Natural Finish. It has spf and even though it is a liquid is does not feel as if your skin is oily. It also feels as if you have no make up on at all. It's brilliant :D.
Hope this helps.

I use bareminerals foundation, but I don't know if they sell that in the UK (?), I used to use Estee Lauder. It costs more than 15 pounds but it's worth it.

The face wash I use is clean and clear morning burst exfoliator, that's pretty much my cleanser but I don't use it too often of course.

i use bare minerals too and it looks really good

for facewash i like using proactiv
it gets rid of breakouts really fast

For your foundation I'd suggest one of three: Dermalogica Treatment Foundation, MAC studio fix foundation, or the cheaper option,
Maybelline Dream Matte Mousse Foundation...
For a face wash, again, try Dermalogica, or Clinique Wash-Away Gel Cleanser :)