[sudo-discuss] USB audio adaptor with stereo input?

I need a USB sound card with stereo input. does anyone have one I can buy cheap? I'm going to hack its inputs to be DC-coupled ADC's, so any fancy features are wasted on me. ebay is full of those cheap USB sound cards but they only have one-channel input. i might give up and just use multiple of those, but it will be hard to synchronize them, although that may not matter for my purposes. -jake