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Phalangium opilio
Long legged spider
Basement, corners, eaves.
Oops! I just saw Lars suggestion. Your spider does look like that. I'm pretty uninformed so I guess I should just stay out of bug discussions. They make me itchy anyway! ;o)
I'm totally not an expert, but that looks like what I always called a Daddy Long-Legs when I was growing up. Wikipedia says Daddy Long-Legs are Pholcidae. http://en.wikipedia.org/wiki/Pholcidae