Several things here.
1. It was Niger, not South Africa.
2. The government didn't claim that Iraq bought uranium. It only claimed that Iraq sought to buy uranium. That's a subtle but important distinction.
3. Much of our intelligence came from the Clinton years. As for the quotes, there are plenty of quotes Democrats and Clinton administration officials fretting about Saddam's WMD programs dating back to 1998, when Saddam kicked inspectors out of the country. By the time Bush became president, it was pretty much common wisdom in Washington that Saddam was running WMD programs.
4. It was an Italian, Rocco Martino, who passed the documents on to British intelligence. He later told Italian investigators that France paid him to do it and they were using the documents the discredit the US. I'm a bit skeptical of the finger pointing, but the whole forgery thing seems to be between Italy and France. Besides that, the British government investigated and reported that they had relied on other sources of information to back the claim.
5. Joe Wilson was the one who lied. He had to change his story when he went under oath so he wouldn't perjure himself (which, as we discussed, is a felony). The intelligence committee reported that Wilson's report on his trip actually corroborated the belief that Iraq approached Niger about yellow cake uranium, although his reported was not considered very significant at the time.
Eh, you're right, it was Nigerian yellowcake uranium and suspected attempts on purchasing it. When I posted, I didn't bother researching to refresh my memory, which was all I relied on. I do remember when it happened, though, and I knew that Iraq had plenty of yellowcake uranium in their own country, so why would they need to purchase it? I agree that all the fingerpointing is suspect, but one thing I distinctly remember was the massive effort taken to mold public opinion to favor the war. But that is ancient history now, and it looks like all the psy-ops operation were a success: so few of us know the real reasons for the war, and we simply no longer care. Phooey.

