My refurb i7 (ordered last thursday) arrived today. Screen looks acceptable to me. I think the bottom looks a bit yellow from certain angles but it is not really distracting. There is a small piece of dust caught between the backlight and lcd in the lower left corner....it's not a dead pixel just looks like a tiny speck of dust and is nto distracting once i enlarge the dock to cover it up. I've seen something similar on one of my other lcds and it's ok with me.
I am having another issue that may warrant a return...no airport detection. I am not seeing an airport device in system profile (i have a 24" imac to compare the screens). Did a re-install of the OS but still nada. Perhaps a PRAM reset.
On the bright side I did get a 2 TB drive. 4 GB of ram

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Case looks new too.
EDIT---the airport issue might be a 10.6.2 problem. I'll call Apple and inquire about it, but I will probably wait for a fix rather than do an exchange.
http://discussions.apple.com/thread.jspa?messageID=11232575#11232575
Simple white shipping box, very heavy, and surprisingly little packing material inside.