more info
You said bargain, but what's your budget? Do you want digital or analog? Do you have firewire on your computer? Do you have a computer?
Anyway...I bought a used Presonus Firepod (8 inputs, MIDI, spdif) off of ebay for $250 about a year ago and I am completely satisfied. I would definitely recommend something with 8 channels, but that will be determined by your budget and needs.