If you can find a used fostex FR-2LE you should check into it.
Great all in one with p48 and quiet clean pre amps. They were going for pretty cheap.
^^ This, especially over any of the cheap tascams (but I don't trust the tascams, ymmv).
The there are three things I didn't like about the fr2-le when I had one; no spdif in/out, no word clock in/out, and it didn't split files, so it was 4gb and restart. These are minor quibbles, and if those features aren't important, it's really attractive on the used market.