I'm still a bit new with SP 2010 so please bear with me.

I need to create an accounts payable (AP) like system that will create a
task on a list based on the itemization of the invoice being entered.

Each line of the form (built in Info Path 2010) will be used for each
itemization within the invoice. Each line will have a drop down
pre-populated with all the cost centers within my company and that
determines who is responsible for approving it. Most invoices will only
have 1 item but on occasion there will be more. That's why I need to
find a way to accommodate itemization.

When the form is submitted, I need to loop through the form, look at the
drop down on each line and send a task to the list designated for that
cost center. Each list will have its own workflow that will kick off an
email to the owner of that list/cost center and require them to approve
their itemized piece of the invoice.

The part I'm stuck on is looping through the form and sending the item
to the list based on the cost center selected in the drop downs.

Is this possible or is there a better way to do this? I'm not married
to the form being designed in Info Path if that's not the best solution.