The oil concerns will be quickly answered after the war. It will hinge on whether or not the US tries to influence the new regime (or decree it acting as the new regime) to privatize the oil industry.

I don't see how a move towards privatization will be met with anything but howling derision from just about everyone. For the EU and Americans against the war it will confirm our darkest suspicions. For Arabs it will signal the complete farce of our humanitarian declarations.

Not even Saddam could have privatized the oil industry and stayed in power.

Time will tell.

The other issue (and closer to the topic) is who pays for it all and who profits?

Using public funds to secure private profits is only palatable if you're comfortable with the idea of "trickle down". Yes it will put money into our economy which will have some beneficial ripple effect, but will that ripple counterbalance the massive expenditure of public funds? Especially when those funds could have been spent more directly on public interests.