I have been collecting components for my home theatre over the last few months, and finally starting putting it together. It's a 5.1 system with a 120" screen and I'm looking forward to firing it all up.
I was interested in the total cost so I thought I'd list them out here in case it helps another OzBargainer.
Projector - BENQ W1090 bought at eBay 18% off sale - $737.18
Projector Mount - $68.95
Projector Screen - 120" fixed white bought at eBay 18% off sale - $262.40
Yamaha RX-V2073 receiver - second hand from OzBargain classifieds - $665
Speakers - already had a 5 speaker set from Accusound - today's equivalent ~$1000
Subwoofer - Wharfedale SW-150 bought years ago on sale from JB HiFi - $400
IKEA 3m BESTA unit - ~$510
10m HDMI cable - $70
Wall plates, surround speaker brackets - ~$30
Installation - my time!
TOTAL - $3,743.53
(Haven't included speaker wire or pre-wire costs)