I bought a computer online, and didn't realize that it had no PCI slots. If I keep this computer, I lose my beloved Echo Mia Midi. I need stereo analog and RCA S/PDIF IO, and midi would be nice but not essential. So, what Linux Friendly PCIE, USB, or Firewire (PCIE first choice) interface is out there with those features for say < $200? Thanks, Tobiah