Originally posted by: pukemon
To the original poster, computer music can be as cheap or expensive as you want. If you're on a relatively limited power system (like it sounds like you're on) if you're happy with what you're able to do, the least you'd want is to purchase a higher quality audio card. If you don't need to record more than stereo in, the Echo Mia MIDI PCI will work very well. If you want to get into using software synthesis and using VSTs, and software effect plugins, that can get potentially very expensive - ie investing in Digital Audio Workstation(DAW) software such as Cubase or Sonar, and a rig that can handle it well.