I feel like I've hijacked Greg's thread here! Sorry Greg.
For the coffee rub, I either make my own (recipe to follow) or I use one made by Weber that I picked up at Sam's. It's very good, has a kick!
The recipe for mine (great on pork tenderloin BTW!) is this :
RG's Smoky Espresso Rub1 Tbs brown sugar
1.5 tsps smoked paprika (regular paprika can be used but you'll really miss that smoked flavor if you don't use it)
1 tsp garlic powder
1/2 tsp onion powder
1/2 tsp salt
1/2 tsp coarsely ground black pepper
1 teaspoon instant espresso granules or 2 teaspoons instant coffee granules (I use instant coffee, dollar store stuff)
This is a keeper, feel free to add a little cayenne to kick it up a notch, 1/4 tsp should do it.