So far i've managed to run a decent report that includes:

Line Item:
   Start Date; End Date;
   Lifetime impressions
   Goal Quantity

Advertiser:
    Labels

The only Report Metric I use is Delivery indicator.

 I run this now automatically every morning.
 I open in Excel and Filter the Delivery indicator to 'less than 100%' which shows me the items in danger of not delivering it's target.

 Then i sort by end date so the most recent endings are first. If only i could automate the filtering and ordering in DFP before it ships that'd be great.