To those of you who have been thru a FT academy or in the military... can you reccomend a top quality pair of running sneakers that will get me thru the academy? I want to get a pair soon so i can break them in. There are so many out there to choose from... i have a $30 pair of Nike's now and my lower body gets tired after about 3 miles. I think i need more of a cushioning pair. Any suggestions?