I separately picked up an M Audio Quattro and two Omini I/Os for $100..thats 24/96 recording, midi control, 4 half decent mic in/pre amps with phantom power, a handful of line ins, mixing on board and usb connectivity for that $100
Its not the most stable but once you've set it up right its excellent
I also picked up a line 6 DI with Pod Farm platinum/Gearbox gold for $60
Have a look about..C'list and Evilbay can be your friend
BTW Ive seen loads of Tascam 144s go for under $100....