What are some really good running shoes?

What are some good non-expensive running shoes? Flexible and Light…the best shoes I have for running right now are nikes and they suck as far as flexibility goes…and I notice when I run top speed I run on the Ball of my feet(the upper half, is that normal?) and my nikes wont let me do that…Thanks!

What are good running shoes for woodsy terrain?

Im going to start running again but i’ve always run in my neighborhood on concrete or through my halls for indoor track. I found a new place recently that im going to run in, but its a woodsy little area so i dont know if general running shoes would work well on that type of terrain?

any suggestions for good shoes for that kind of area? Preferably Nikes?