> 
> Check:
> 
> - Brightness
> - Native resolution

These two are prominently displayed on all the item descriptions.




> - Size
> - Contrast ratio
> - Noise level
> - Lamp lifetime
> - Colours saturation
> - Number and type of inputs
> - Fancy extras like auto-focus, auto-keystone, USB/LAN control etc.
> - Can it be used upside down (for ceiling mount)?

Contrast and lamp lifetime [and cost!] seem important. None of the rest 
seem especially important for what I need.

What's auto-keystone?

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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