Well finally i bought it for 225€ the DX7 + 10 Cart + Keyboard stand, which is 130€ cheaper than the DX7 IIFD and i think is a good deal, i was confused and going for the IIFD, but to be honest the human factor made me go for DX7 because this guy was a real musician and he knew what he was talking about and has convinced me :D

I know i will be happy with this synth and it's sound

Thanks a lot for the help, even if everyone pointed (90%) to the DX7 IIFD and finally i went for the DX7 xD