Well in the end i went for the NEC DVD writer that Simon recommended. It came today along with my new case, and i managed to fit the drive and change everything over from my old case into the new one and the computer booted first time!
Still havent got any discs yet so i dont know if it works
I think Redstore could do with a website makeover, it isnt the nicest of sites or "naviagatable" (aint a word but hey
). Very good delivery time too but thats because it had nothing whatsoever to do with Royal Snail