Blakelight. You have the Virus KC and the V-synth which is always a good start. Consider getting some new patch banks - even if you have to pay. You would be amazed how different and amazing the kit you have can sound in the hands of a top programmer.
I would advise you to consider having a look at some of the Virtual Software Synth's available. Here are a few of my favourites: -
GForce Oddity - (ARP Odyssey simulation)
GForce impOSCar (OSCar simulation)
GForce Minimonsta (Classic Moog simulation)
GForce M-Tron (Mellotron and much more)
www.gforcesoftware.com
reFX Vanguard - (Very nice Virtual analogue poly synth)
reFX QuadraSID - (C64 sid chip emulation! fucking great)
www.refx.net/products.htm
When you consider what you would have to pay to pick up an original hardware unit, find the space to set it up, hassle of cables and have the limitations of polyphony - you will realise just how much of a bargain this software is. And it does sound fantastic.
It wouldn't even cost you half of what you paid for your V-Synth!