I have no idea how or if animations can be converted so, unfortunately, there isn't much point in trying to rip enemies or weapons but some of these decorations are quite nice.
Anyway, here they are. I have made no real attempt to make suitable decorate files for them (they are all non blocking and the default size ATM). Also, the scaling I picked to show them off was just a very quick "that looks close enough" process just so that I could see them in game. If anyone wants to use them, proper DECORATE/ZScript files will be needed and a bit more attention will be needed to get the sizes/scaling right too. Feel free to use them as you wish.
Pictures:
Spoiler:File:
http://www.aspectsweb.co.uk/enjay/doom/ ... Models.pk3
About 90 models and ~10MB.
Credit to Croteam, of course.