Im interested in this, I made a thread about this in model suggestions in the model section.
For door ideas one just looks to the different screen swipes one gets in animation programs or animated giff programs, these have lost of swipe effects that one can take ideas from.
styles - bars, like a prison, both real world type, and sci fi ones, metal shutters, castle draw bridge, gates like on a big mansion or haunted estate, sci fi doors, with sections that move or slot in place. round door that opens and shuts like a camera shutter. svivel door, cowboy saloon doors, lazer screen doors that de rez (barrier like, as in a lazer seet not beams like in star wars 1 with darth maul fight at the end), lots of ways of doing lazer barriers, they can have the lazer come from the side, the top the bottom both at once, loads of decal effects one can do for the lazer door coming on etc, just lots one can do with that. How about doors that scan you, with a beam coming out to see if you have the identity to access them, doors with glass sections one can shoot out, aliens versus predetor 2 had those, they looked great, infact glass doors or doors with part glass in or glass sections look great, so some of those, doors with some parts opening by going in the ceiling some in the floor, that goes to the swipes I spoke of, like I said you have loads of software that has transition effects, so you can get swipe effects from that, two that come to mind, website x5, that has page transition effects you can get ideas for how doors should open and shut in a facy way, and paint shop pro the animation part, that has image transitions you can get effects from on how doors could open and shut in fancy ways.
Just thought of another, a star gate (like the TV show) with facy pants animated surface, Im sure fpsc users can add to the list, lets see what people come up with.
sub note, the lazer bars you did, the unit on the floor gets in the way, either the bottom part is just disks in the floor, dont make them, just make a decal, or the units are on the side leaving the floor un cluttered. infcat sideways and vertical kind is good.
stick an alpha channel on that lazer beam as well so its got some transparency.