I will be recording a death metal band soon and they want the electronic "bass drops" and "backward, shimmering cymbal" sounds to accompany their music. Where can I get these sounds from? The guy at the local GC said that I need to buy the entire Battery program from Waves, however I am sure that there is a better way to them than that. Can someone please help me here? I do not want to lose the business of this band because I can not give them what they want for electronic sounds... Thanks so much!