Office Projectors?

Hi there, I'm looking to set up a projector in the large new meeting room at the office, which will probably be set up next to a new mac used specifically for the purpose of projection, but I've no idea which projectors are mac compatible. Does anyone have any advice on everything I'd need to get a projector up and running?

(N.B. Publishing Office so picture quality should be reasonable)

 

sorry, here are more requirements: low budget, distance to the screen no more than 5m, screen no more than 3x4m (over-large estimate), doesn't need to be mounted but will only be used in one room so size is not important... brightness and resolution should be decent but I'm not sure where to set the bar on this one!