Right - and the motherboard he chose was the ASUS Striker II Formula 780i SLI. Correct me if I'm wrong, but isn't that a tri-sli board? =P Also, SLI boards are not all expensive, my current one cost about US$60-70 ($150AU) - for an SLI system, I'd hardly consider that expensive. I can get another model up for about an extra $50 US, so they're not all "quite expensive". Depends how much you wanna spend.