Im looking to buy a tennis racket(how do you spell "racket"? is it a racquet?) but I don't know where to start.

I was told that evenly balanced rackets that weigh in at about 13oz are the best. I would say I have a medium power stroke and I need a mid-size racket.

I would like to spend about $50(i know, that's not a lot. I don't really want to spend too much as I don't play very often)

Any suggestions for brands/models?

one of the rackets I was looking at was the Wilson Grand Slam. Seems like a fairly nice racket for the $35MSRP on their website.

I don't mind the heavier weight, if anything it'll help me get a bit more momentum.

Thanks for the help!