I have a budget that can't be stretched otherwise the Mrs will kill me. My budget is <$900 delivered and I live in Australia. I have done some searching and have come to the conclusion that importing from the US would be the way to get a decent machine for that price as the prices in Oz are crap. I have found a few models that can fall into the budget through a bit of persistence on eBay but cannot decide on which unit I should focus on. The list is as follows...

Optoma HD65 (New)
Mitsubishi HC1500 (New)
Sony VPL-AW15 (Practically New)
Panasonic PT-AX100U (Low Hours, good condition)
Panasonic PT-AE900U (Low Hours, good condition)

The projector will be ceiling mounted about 15' from a 110" or 120" screen. Every so often I will be taking the projector outside at night time and I want to be able to get about a 150" image, ceiling mounted and distance will not be a limitation.
Second hand does not bother me if it is a better unit and has reasonably low hours. I think I'll have an issue with a US warranty in AU anyway so I don't think brand new will help me in this regard. I'm just after the best unit for the price.
Is there any other units that could be added to the list? And is there any issues that I may need to know if importing from the US, ie Power supplies, etc. Totally new to the whole projector scene so any info would be great.

Sharp DT-510 - see my other thread

Seconded on the Sharp DT-510.....DLP plus dual manual iris = mindblowing image.