At the moment I'm running in some cross trainers (I mean they're designed for going to the gym in, not that they're angry) that I bought years ago. I thought I'd treat myself to some proper running shoes but I went into one of those shops and it all felt a bit terrifying - too many choices. The salesman just felt like he was trying to get me to spend lots of money. Is it worth it? What shoes do you run in/recommend?