Got a few cars to look at this weekend. Is there a topic anywhere on things to look for (common faults etc)

If you go to skoda fabia technical guides you can see what most people do for DIY jobs and. Some of the common problems. Apart from that just have a search, this thread comes up all the time so you should get good results.

Off the top of my head, console bushes, rear door leaks, powerd steering issues.