Best "Base" Beer - All Grain with Additives

I'm getting into brewing with additives, not extracts, but dry hopping/spices/purees. What are some of the best "base" beer recipes/methods to use when you plan on using additives on an all-grain beer.

I'm looking for a great, lightly flavored base to make a good pale ale, IPA (not sure if IPA can be good with spices/purees...?), wheat and possibly a stout.

I'd love to have a generic, but great, recipe for a wheat beer, that I can then add, say, a cinnamon stick and blueberry puree to.

Is the best method for all just generic grain usage and going easy on hop-use in the kettle?

Thanks for any help guys.

Sure depends, alot. Try 12# 2-row, 1# Crystal 20, at 40 IBU

Check the recipe thread. I think that the Delerium Tremens clone is like a single malt, or nearly so. Seems like you can safely start out with a very basic grain bill and add to it as you feel inclined.