While the French/German/Russian plan does seem a bit late in the day it does have some merit.
Proposal: given the reluctance of Iraq to co-operate fully with the inspectors, could the UN pass a new resolution insisting that the numbers of inspectors be significantly increased (perhaps 10 times as many rather than just 3 times) and that the inspectors be backed up and protected by a couple of thousand UN troops drawn from some proficient army other than the US or UK. Plus total freedom for UN backed spy plane missions anywhere over Iraq using aircraft from the US, UK and any other nations the UN sees fit. Perhaps the resolution could be extended to investigation into alleged human rights abuses by the Iraqi regime, offers of asylum etc.
In other words, is there any inspection regime that would be acceptable to the US/UK and satisfy the UN demand for demonstrable Iraqi disarmament and thereby delay the use of force.
Of course, such a proposal might be rejected by Saddam - in which case a war would be justified and all NATO members will be friends again. If he accepted, we could be sure of finding any WMD that he has and perhaps have the effect of undermining his regime indirectly.