you can try my free "bathroom hd" reverbchamber http://www.mediafire.com/?8as33sp2c61wdb6
not suitable for everything, but sometimes it does the job perfectly.
put it on an auxchannel fully wet, if you need some equalization.
it's a real room, used as reverbchamber. by design it tends to be short
there are some others in the pack too.
i got great results in combination with the vnxt 240 plate, where it can act as a sort of earlyreflections generator, before it goes into the plate. it does a great job in moving signals back in the soundstage.
with a modular environment like metaplugin, this could be further refined (splitting the signal for the two nebulainstances and only feeding a bit of the earlyreflections into the plate; putting a delay before the plate to finetune the onset of it timewise).
nebula plates are great! and so is ear-reverb from analoginthebox!