I really don't want this thread to fall by the wayside. I think there are a lot of fantastic recipes in the record books of some of the forum members here...but perhaps they're too humble.
This is a recipe that won a third place in the American Amber ale category in a local hb store's annual competition. It is a very versatile recipe, so feel free to change up the hops as desired--the result will probably be as good or better.
19L - 2.5 gallon boil
2.7 kg Amber malt extract syrup
450g Pale Malt
450g Medium Crystal malt
85 g Chocolate malt
Centennial for bittering
15 g Cascade and 15 g Centennial hops for last 10 minutes of the boil
15 g Cascade and 15 g Centennial hops steeped for 15 minutes after the boil
Add enough bittering hops to get a final IBU of about 30.
I used Safale 05 for this beer, but Nottingham will work just as well IMO.