Sugestions about How to make a Live Set?

[dseabra]

Please I need a help about live set, which way?

My SETUP:
- Computer:
Pentium 4 HT 3.2GHz
Intel PERL Motherboard
1GB of Ram DUAL-CHANNEL
1 HD IDE 80GB
2 HD SATA 80GB (RAID 0 MODE CONNECTION)
ATI 9200 256MB VIDEO BOARD

- Synthesizers:
Access Virus Indigo 2
Access Virus KC
Access Virus B
Access Virus C
Clavia Nord Lead 3
Roland JP-8000
Roland JP-8080
Roland XP-60
(We gonna sell Virus B and C to buy a TI)

- Interfaces:
Mackie Onyx 1620 With FireWire Card connect into the computer
MOTU TimePiece AV Midi Interface

- Sequencer:
Steinberg Cubase SX 3

Well, this SETUP is our current setup, I need a sugestion about a better way to make the live set...

A TRUE live set, need to be played by a computer together with us playing? Or I can bring computer only to play audio recorded tracks of some sounds and the rests I play by myself?

Whatever, I can see that have a lot of ways to play it...but...if you can help me...sugestions will be very good accepted...

Thanks!