Glad you enjoyed my hometown's race, Eggyh! I've never run it myself, since I don't train well for long distances in the summer. Cooler spring marathons are my forte, although I wish I could have traded this year's Boston for Chicago.
I forgot to mention that the Nike Frees are about 75% the cost I'd been paying for my "normal" shoes. I was paying up to $125 US per pair for "normal" shoes and I'd only get about 350 miles on them before the mid-sole cushioning would start to wear out. The Nike Frees are around $80 US and I've heard of people putting up to 1,000 miles or more on them. It sounds like I may end up saving quite a lot.
I'm from Chicago, IL, USA. I've posted a little on the Paris Marathon thread in Events. Starting back in late April, I've been gradually shifting over to minimalist shoes. I've become more of a midfoot/forefoot striker during the past 10 years, so I was curious as to how minimalist shoes would work for me. I bought a pair of Nike Free Run +3-5.0 first, the a pair of Nike Free 4.0 V2 and New Balance Minimus 1010 about a month ago. I started out just wearing the shoes to walk around at work, and then gradually putting running miles on them. I was still rotating in my "normal" running shoes. Three weeks ago I had a sudden twinge in my right knee, and the next 2 days my runs had to be cut short due to knee pain. The 3rd day the pain started immediately, and I took 5 days off running. When I started back running, on a hunch I went cold turkey over to all my runs in the minimalist shoes. Right away I could feel the improvement. Each day I could feel my knee getting stronger, as well as my calves and feet. Eighteen days after my injury I ran 15 miles at the fastest pace I've managed in 3 months. The Nike Frees are very lightweight and the soles are very flexible. I have a much better feel of the road in them. I do a lot of my mileage on concrete and seem to have adapted well. I hope you have good luck in your shoe choice.