So, I know I'm reviving an old conversation . . . . just read Dresden Files RPG and love the Aspects and Declarations and they way they work in that game -- and I'm very interested in adding them to my own game.
In our group we have some concerns about adding complexity to the game by bolting on new economies, etc. I considered an idea similar to the one presented by .5 Elf above, blending Fate Points into action points, but I feel like that's not the best fit possible -- APs are a much more scare commodity than fate points are in Dresden, if I'm reading the game right.
The idea I'm kicking around right now is mostly a version of what Weem is suggesting, but instead of using fate points as the currency, fate points are healing surges.
IMO there are a lot of interesting synergies when you treat FP as HS in this way. You can throw out a lot of your recovery rules, and you get some interesting effects -- like, when a PC is low on surges he's much more likely to behave badly (accept a compel rather than buy it off with a Healing Surge).
There's even a decent precedent for using healing surges for things other than restoring health and hit points -- the martial practices system uses healing surges to pay for most of the practices a PC might complete -- including those that really don't require physical labor.
Am I completely nuts? Do you think that could work?
-j