If you get those drums sorted, from there it's just a bit of fine tuning your mixing and it'll be sounding pretty solid. The guitars already sound great, and Trillian puts out some great bass sounds, it's just a matter of getting everything sitting right. That is, both in terms of frequencies as well as depth. At the moment there's no real sense of depth going on, everything's just sitting right up front in the mix, dry as a bone.