Myer Emco Sale

Checked out the Myer Emco "Warehouse sale" last night. They had a sony projecto for sale 720p for $999. Im still deciding if I want to go 720p or 1080p. The myer emco told me that if I had a 1080p TV then it would make my home theater look worse at 720p. I should go with a 1080p projector. that would up my costs another $1500 to $2000. I did see some used/display model yamaha and pioneer A/V receivers on sale. I need to do a price comparison to see if they are worth it. I think I might pick one of those up instead of paying full price for a new one further down the road.

My questions for this week are 720p or 1080p for the projector ?
Used display model A/V receiver (good quality) to save some money or pay full price on a quality A/V receiver later down the road ?