Video projectors etc

Video projectors etc

What's the setup needed for a nightlcub environment if I want to project a looped dvd/images onto a wall/ sreen. Not needing a VJ to do it live, just want to have something running on a loop.
I'm Assuming I need a laptop, video projector, a way to link the 2, and white wall or screen. What else do I need? Any problems to consider?
Thanks

* Projector
* Laptop OR DVD Player.
* Somewhere to hang/attach the projector
* the actual footage.

otherwise thats it. i use Resolume in 2 ways - either LIVE (off the laptop) OR o use it to record a segment (say 30mins) then converted it to a looped DVD (and hope no-one noticies the 1-2 second jump as it restarts!) then stick it thru a DVD player

Thanks, as always you are a sparkling fountain of knowledge

any wall will do and projected as flat onto it as possible (althought the screen tilt can be adjusted) - and if it's a standard projector it needs to be as dark as possible for the best quality.

:edit:

also can any1 sugest a good piece of software to use for projecting stuff , possibly mac based , sorry to hijack