Baby Jogger City Mini Double Pram - anyone got one?

[starangelk]

DH and I bought one of these today, when the new baby comes along we'll have a 15/16 month old and a newborn.

I have a few questions for those who have one:

1. Do you have the BJ rain cover or just a generic double pram rain cover? If generic, does it fit okay?
2. Should I invest in the footmuff or anything else for the newborn to be more supported? I had a bassinet style seat for our DD so I'm a bit nervous about the newborn going in the pram as it is.
3. Does the BJ bassinet you can buy fit onto the double?

Anything else I should know?? Thanks heaps