What memory to get ?

[Jaynos]

My Spec

Intel i5 3570k 4.4ghz
ASRock Z77 Extreme4-M
GTX 680

Looking for 2x4gb chips

Whats the best deal ? don't really wanna spend more than £60-80

edit: oh and they can't be too chunky as they have to fit in under my heatsink

 

[ttaskmaster]

I got a set of Crucial's Ballistix Tactical Tracer. 1866MHz, low latency and flashy lights. They cost the top end of that £80, but does me very nicely.
Another my more budget-conscious friends use is the Kingston HyperX Genesis.