If I were you I'd definitely put the money into getting bigger Maggies, then evaluate the rest of the system. I had the MMG's and just recently bought a pair of 1.5's. The difference overall is startling and makes me want an even bigger pair. I've had several speakers, some quite expensive in comparison, and these really deliver what I want for the most part at a bargain price.
How do you like that Bottlehead? I've been spending alot of time at their site and I'm thinking about the Seduction.