Hey, I can do almost anything less script on doom... I use doom builder 2 and XWE(extendeble wad editor), with XWE I can edit each lump, texture, sprite, graphs, pallete, midi musics(and since i'm a musician, i can help with it too), and a lot of stuffs... I'm a very good user of photoshop and 3dsmax. But i would not do 3D for doom, only if paid, haehaeheah!