I can't get minecraft mods?

I had 3 mods (too many items, mo creatures and single player commands) but when i was playing it said saving chunks and then black screen. I tryed to go back on but the same thing happened, my other world works with the mods. I tryed reseting my .minecraft folder by deleting in and updating minecraft but then when i re-install the mods i get black screen. I also deleted my minecraft and bought it again but i still get black screen.