...to have a gift registry for my baby shower???

My sister got lots of lovely stuff at her baby shower but I did have people asking me "What does she need? What should I get?"

So was thinking for mine I could do a registry with Baby Bunting or Toys R Us... or should I just do an informal list with my mum/MIL, so that if people want to have ideas given to them they can, but they can also just do their own thing?

I also know that my close friends will want to buy me something that I will use, something big, so they will probably just ask me outright...

Opinions please...!