I currently have JBL Creature II speakers. They've been great so far but I really miss having a real volume knob and a headphone jack. I was also looking at some 2.0 speaker systems to further reduce clutter (no sub) near my desk. I was checking out the Creative GigaWorks T20 or T40 systems. Any good/bad experiences with the T20/T40? Would I lose a huge amount of base with no sub? Any comparisons to the Creatures? My budget is about $80-90. Thanks for your time.