A winding on the pickup may have broke, and that's fixable. The only ones we don't have are probably the extremely rare songs that few people have heard. If you need tabs for other songs or bands, try one or more of the following. I would recommend looking through these sites before asking anyone on the board for tabs. If you ask this question, I will guarantee you will get a hundred different answers, and half of them will be from me.
Distortion pedals are like opinions, everyone has a different one.
It's all up to you. I would recomend that you go to your local guitar shop and try out as many as you'd like. You'll be sure to find what's right for you that way. I'm thinking about getting some new gear. A bad amp will make a good guitar sound bad as well, while a bad guitar will sound much better played through a good amp.