Eh no one here is a politican, but I'd try something like this:
More inspectors, and bring troops (a la UNPROFOR) to make sure they can get to all the places, without prior announcing, and start exchanging intelligence data properly.
At the same time, send in charity organisations (Red Cross, Doctors without borders etc...) to help Iraqui people get those food supplies, medicine etc...if necessary, some of the earlier mentioned troops can help make sure this help is not blocked in any way.
Confiscate the money/block the accounts from the authority, use that money to buy food and medicine and distribute it to the people by charity organisations mentioned before.
Put various (incognito) human rights "watchers" inside the country to report any abuse - the perpetrators are to be arrested and put in prison, or alternatively, banned from the country - use Interpol to help.
If the inspections don't work well, put pressure by adding military force around the area. (if being attacked, respond appropriately)
At the same time, gather information on local opposition. Is there any hope for a democratic change by election? Can we financially/military help them to overthrow the authorities? Can there be a non-violent removal of the leaders (arrest for abuse of power/crimes against his people...removal to Haague international court?), and then an election? Ban the current party - any sympathizers are to be arrested and/or banned from the country and start a multi-party system - get international law experts to help it get started and get international observers to control the legality of the first election. Then start a democratic parliament, with a new elected president.
