Go barefoot, it'll strengthen your feet not damage them! Start off VERY easy though - a three to five minute out-and-back jog on flat tarmac is probably best.
Take it very steady and you'll be surprised how little it hurts, in fact it feels GOOD!.
Over the summer I was running barefoot on the moors, up to about seven miles and only once hurt my foot so don't worry about all this 'broken glass/dog mess/ sharp stones rubbish, it's all stuff you can avoid if you watch where you're going. I sometimes took a pair of flip flops along if I knew I was going to hit a nasty stony bit but by and large all those different natural surfaces were a joy to feel under your feet.
Bring on a bit of dry weather, says I, and I'll be back up there again, barefoot. At the moment I'm running in vivobarefoot shoes and I love them, too.
The easiest way I found to change running style was just to forget all the science stuff, and run on tarmac in bare feet (barefoot running!) for progressively longer periods of time. I think I started with about three minutes out, three minutes back and built up from there;
Now, I'm happy with a seven miler over the moors in bare feet although the winter will probably see me in vivobarefoots...
I have found it to be slower but then I was never a gazelle anyway, and the ground can be very slippy off road. The enjoyment more than makes up for it though!
I do have some 'barefoot' shoes, for the winter really, cost me about fifty quid in a sale but even they don't feel the same as real barefoot; especially in this weather, it's great. Nice soft and warm sandy bits, cool wet bits, streams, whatever, it's all good. And due to the way your feet move under you rather than reaching out in front, grip isn't as bad as you'd think, and neither are toe-stubbing incidents.
You've got to ease into it though, it's very easy to get carried away and start your achilles' twanging!