If the A&H works - esp. for monitoring and routing - you would likely have to spent a bunch more money to get anything better. It might make more sense to see if Tascam comes out w/ something. I have a friend who got the Toft for his project studio (including recording) and he loved it for the ergonomics, but you already have that w/ the A&H. I'm not sure how much better the Toft EQ is. I've always found A&H EQ good. To me, the toft sounds more like a sideways step than major upgrade sonically.
The Focusrite 2802 is something you might be interested in - more of a summing mixer (16 ins) but w/ motorized faders for 8 more channels, including nice preamps. They had some quality control issues when they moved production to china, but if you get a good one it is a nice package. Clean, not much color and a patchable stereo bus comp. I think it has two sends, which should be enough for simple headphones or mixing. It could really shine if you have a lot of outboard.
Which brings me to personal experience here at home. I think the best thing, as far as bringing quality to my home sound, is the RND Portico II channel strip. Yes, it costs almost as much as a board, but it adds a big console sound to lead and overdubs. Since I rarely record more than 2 tracks at a time here at home, it gets used most of the time. That or a high quality stereo comp, since you already have the UA (which ain't really the same as the Portico etc. - the 6176 is go to for bass but can be a little thick if used on everything).
Anyway, my two cents.
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