multiple simultaneous input record as well...I started out with HS2002...then upgraded...never regretted it for minute...then later I made the jump to SONAR 3.0 because I was looking for more synth, dxi and editing capability. If you think you might ever go there, skip the 2004...save some money and go SONAR.
All in all HS2004 was what I thought it was going to be.
Best of luck to you.