For mobile recording, I would take a long, hard look at the new JoCo Black Box. This is a fully professional unit, specifically designed for mobiles. It is completely transparent for other units, so no compatibility and export problems. Record, plug in the DAW for editing and mixing and that's it! Prices start around $2k, which, considering what it can do, is dirt cheap!
That way, you will not need to buy any other gear (other than the usual cables and similar stuff) and you can continue to use whatever you are using now. It also means you can do 24-track, which is pretty much the minimum for a flight-case mobile rig.
AudioMedia - January 2010 JoeCo BlackBox Recorder Summary