2.2 SRi brake questions

[no2lurch]

on the way home, my drivers side brake started scraping real bad. had the brakes apart and i deffo need new discs and pads up front but which do i need?

my car is a 2.2 SRi estate and it has lucas calipers.

do i need to look out for anything i need to be aware of?

how much will i be looking at for new front pads and discs?

[no2lurch]

all sorted now. changed the pads and discs last night.