Just got my Williams Brewing catalog and they have hop aroma tabs. Sound like a good way to boost aroma without losing too much wort. Only downside I see is "varying aromatic hops".
Have you wanted to increase the hop character of your beer without making it too bitter? Made of hop oils isolated from C02 hop extract, Hop Aroma Tabs are virtually free of alpha acids. These dense tablets deliver flavorful oil deep into the wort, adding more aromatic oil than is normally possible with traditional whole or pellet hops.
Made from varying aromatic hops, use 1 to 2 quarter-sized tablets per 5 gallons of wort, adding at the end of the boil or in the fermenter.