accessories

I've just bought a 125mm angle grinder for a few jobs around the house. I'm in the process of choosing a selection of discs for a range of tasks which I won't go into, as the question I have is fairly broad... which is: What brand(s) are well regarded for being high quality for angle grinder...

I haven't used this panelling before, haven't done much tiing either. Shower panels look like the way forward if I can get some for above the bath. Does anyone supply custom panels? (probably not laminate). Thick enough to be rigid. For walls above long side and each end. Approx.160cm tall...