Currently looking to replace two rear tyres

Size currently on car, 235 / 45 / 18 94W Bridgestone RE050A

I am undecided if I want to replace the existing tyres with Bridgestones, mainly down to the eye watering cost

Anyone else tried different sizes on 18"s or anyone have any suggestions for alternative brands in the existing size, as I could be tempted to change all 4 tyres

I drive pretty, hard cornering wise, so would be looking for a grippy tyre, rather than an ECO type tyre

Hey folks,
 
I need new tyres, but always conscious about how they perform. Dont/cant break the bank, but at the same time need some decent rubber.
 
My choices are:
- Dunlop SP Sport 1, Part Worn with approx 5.5-6mm tread remaining - around £70 the pair fitted;
- Uniroyal Rainsport 2 - NEW - around £120 the pair fitted;
[size=small]- Nexen N 8000 - NEW - ar