I recently made something similar... I added grains of paradise and coriander, along with FRESH lemon zest.
I say go nuts with the coriander... like 3-4oz. I used the recommended amount of orange and coriander in my Belgian... the orange was STRONG and the coriander was pretty weak. I would have halved the orange next time, and tripled the coriander.
♣ Murphy Brewers
On Deck: Completely undecided.
Primary: 'Boston Massacre' American Strong Ale
Bottled: 'FishDog' 90 Minute Imperial IPA, "Black Cat Blonde" Summer IPA (only 2 bombers left), 8.2 Hard Cider, Belgian Dark, "Kilt Tilter" Scotch Ale, Spiced Pumpkin Ale, Strawberry Summer Ale
GONE: "Home Opener" High ABV Honey Lager, "St. James Gate" Stout (Guinness Clone)
2011 total so far: 63 gallons