We've managed to running around for about six miilion years... hunting, gathering etc, without the need for special shoes that correct our gait. If the feet weren't up to task they would never have evolved the in way they have.
I think the debate about barefoot running is being misunderstood. To me it's more about letting your feet and legs move in a natural way... the way that they evolved.
After reading the book Born to Run by Christopher Mcdougall, I changed to minimalist trainers, from running in structured trainers which I was advised to wear by running shops. I started running again from scratch, just doing a few miles a week and forgot all previous info about what shoes I needed ie structured/support/cushioning, and started running from scratch. After more research into forefoot running I adopted the pose method and haven't looked back. I no longer get any knee or joint pains that i suffered before. The transition period was brief and my weekly milage was soon back to where it had been, only now faster. I would suggest that if you do change, at the start of your transition you spend some time working on your core muscles as this will help you maintain your posture when running. If you look at all elite athletes, they all wear minimalist shoes. They must know something!. After all, when we were hunter gatherers we managed without special trainers... because we were born to run. Ive got a pair of Vibram 5 fingers and tried various other light weight shoes, found them all to be pretty good and currently I'm wearing Inov8 f-lite 195's, which I would recomend to anyone. Hope this helps, don't rush the change, you'll find it transorms your running for the better.