I've been doing some research and it seems that Saucony might be for me. According to runnersworld.com and other sporty-type sites, they are good if you have wide feet- and I do. My feet are kind of flat too. Just imagine the most un-athletic un-coordinated foot possible, and you've got me.
Thanks for all your advice. I have no idea where to begin. I don't own a single pair of athletic shoes, not even a plain old pair of keds! I wear high heels/professional shoes every day to work and sandals on the weekend. My new balances have been fine for exercising at the gym, but now that I'm attempting to play tennis I realize they are awful.
Scurvy, maybe we will go shoe shopping this weekend. However, every summer Houston has a tax-free weekend for back-to-school shopping and I was thinking of waiting until then.