+1 on the cascades idea, makes a nice DH, and it won't make any change in the IBU's. At this point, you're not boiling the hops, so the only thing you're going to get is their aroma.
also, what's the story on the 'Heebs' part? I ask because people call me that all the time.
Conditioning/Drinking: Centennial Pale Ale
On Deck: Banana Cream Rye