My wife has bought a number of her running shoes from the Running Room, so I took her advice and went there. I explained my situation, admitted to my novice running status, and that I was getting some discomfort in my knees. They made me walk barefoot around the store and measured my feet. They made me stand still and looked at my feet... and maybe my posture, can't remember. Then they told me four pairs of shoes that would be ideal for me. They were all labelled on the wall with a certain coloured sticker, which I can't remember off the top of my head.
I tried a pair of Brooks, 2 Saucony's, and a pair of Nikes. By far, the best feel for me was the Saucony's. So for $149 I got a pair of Saucony Powergrid Triumph 10's.