Got MOT coming shortly and noticed my rear discs are pretty corroded. Can pick up a pair of new rear discs and sets of pads for £82 all in. Disctech discs and mintex pads, anyone used these bits before? 

Also do you know if the cylinder in the caliper pushes back easily with a g clamp? I know some Subarus need a screw in tool to get the cylinder back.

Thanks! 

So I went ahead and ordered those bits.  2 rear discs (solid not vented) and a set of Mintex pads for £59.50 all in.  Used AutopartsUK which turns out is owned by Arnold Clark.  Will fit them this weekend...should help me through the MOT in a fortnight in any case.

That's that job done. Fingers crossed for MOT now...