Skyvva

Status
Link	https://appexchange.salesforce.com/listingDetail?listingId=a0N30000003IsNZEA0
Pricing	FREE
5 Users / Year	$0
Description	Not just your typical data loader

Details

Can import to multiple objects from the one spreadsheet.

Can do advanced formulas on the way in.

Very good product, though very difficult to get up and running.

Start here.