Through nannying experience, I would personally go with disposables.

It saves time and energy and I think the babies skin stays dryer in a disposable and you don't have to change it every time they do a little piddle. You don't get leakage, you don't have to handle the contents of the nappy and the most important thing for me is that I would get to spend more time with my baby, instead of washing nappies!

So disposables get my vote!

But what ever you decide, they recommend that for the first month you go with disposables, just so you can get use to everything and spend as much time with your baby as possible. After that you can always use cloth