I ended up ordering the Rubix44, and so far I am really enjoying it! The built-in compressors + limiters are a nice feature, very handy for preventing clipping in otherwise good takes.
Now I'm developing gear acquisition syndrome for microphones. Recently ordered a MXL 770 condenser and a Sennheiser e602-II bass drum mic, finally getting some decent drum sounds. Now I'm playing around with where to put my old Shure 516eq on the snare.
Eventually I'll probably pick up another condenser or a SM57 to utilize the Channel 4 input, but this current set-up seems to be a good start. Looking forward to breaking my dependency on programmed drums!