There's a member on Overclockers Australia forums selling some UCS and Technics sets quite cheaply:
  1. UCS X-Wing, Has instruction booklet, On display, no box. I: $300
  2. UCS Tie Interceptor, Has instruction booklet. On display, no box. I: $200
  3. UCS Tie Advanced (Darth Vaders), Has instruction booklet. On display, have box. I: $120
  4. Motorised Technic Bulldozer, Have instruction booklet and box. I: $150 (bastard! I paid more than this!)
  5. Technic Tow Truck, Have instruction booklet and box. I: $100 (I've grabbed this one for myself, thanks )
If you don't have an account to see the Shop and Swap auction area on OCAU, you could get in touch with me.