Try to search on a turbosquid.com. Some models are free...but IMO you won't find great & free models. This is interesting, 99$: http://www.turbosquid.com/FullPreview/Index.cfm/ID/708551
3D-Coat seems to excel at hard-surface sculpting, and the educational license with 2k texture limitation only costs 99$: https://www.youtube.com/channel/UC3PHtDtdiV6-FlLmqu8OUCA/videos
Good luck with the show, I studied at the Eldon building back in 99- Would have tried to make it with some more notice but sadly working at down in Bognor today :(
http://kotaku.com/5840901/fake-resident-evil-6-video LOL at Kotaku's foolishness. I'm 99% certain this is actually a real teaser trailer. I'm hoping for the return of old school Resident Evil!