I have forgotten to mention an article in World Nuclear News from June 2008 that you might want to keep handy as a reference. It is titled Exploration drives uranium resources up 17%. Here is the lede from that article:
Current economic uranium resources will last for over 100 years at current consumption rates, while it is expected there is twice that amount awaiting discovery. With reprocessing and recycling, the reserves are good for thousands of years.
