Theres only 2 names worth considering really - H&R and Eibach.

Of course you could go for coilovers from LEDA, Bilstein, GAZ etc - but for springs stick with those 2.

I never had a problem with Monroe Sensatrac gas shocks, they are not expensive either. Last a long time and are good quality. They spend money on development not on hyping up their products, unlike most of the firms mentioned.