Complex function/formula to aggregate revenue totals

Hello,

I am in need of some help with a function or formula for a revenue tracking sheet I am creating for a new business.

The business sells multiple products that are displayed in a pipeline.

I need to be able to collate the totals of each product sold for quick reference. Therefore a need a formula for cells C5 - C8 to bring in the revenue totals for each product name.

The products are identified in column G and the revenue per opportunity sold is displayed in column E.

Please let me know if you can help me, and let me know if you have any questions at all.

Cheers
Stevie82

Thats the one batman! Thanks so much.