I won a whole bunch of Nike stuff at the NYC Half Marathon, including a pair of Nike+ shoes. I currently run only in adidas, but since the shoes are free I want to find something similar to what I run in. I really like the adidas Boston Classics. They are simple and lightweight. I sometimes run in the adiStar Cushioned 5, which are good, but still a little heavy.
I guess something similar to the adidas Boston would be what I'm looking for.