That was pretty sweet man. I was gonna enter the contest too, do the same thing, get the vsti's for all the parts except guitar and then do guitar and vox but I'm in Canada so there's no point to it now ahahah.

I have to say though, your snare had too much reverb and the kick was really low in the mix. Then the toms sounded really triggered and out of place. The guitar tone was a bit too trebley as well. Still really good job dude.