[Build Help] Mid range PC

I'm looking to build a new PC. I'm mostly a console gamer, so I don't expect myself to do any high end gaming on it. Probably just some source engine based games. The main use for it will be photo editing. I am an avid photographer and need a machine that can quickly handle anything Photoshop could throw at it. My budget is about $1000, but that is because I am starting from nothing. Here is a list of what I have compiled so far. And for the SSD, is 40GB enough to store windows 7 on?

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