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I would defintely use #4. (I assume #1 is just a wireframe...)
The last on is just wow!...ITs amazing! The layout is solid and the grunge effect complements the site perfectly. I'm giving you a 5 for design.
The only problem I might have, is that the foot is humongous...but then I guess its ok to have it that big.
Great job!

Thanks! Yeah, we feel the footer is appropriate given the amount of content this site has. Thanks again!!