I would definitely go for a double (i have the P&T Vibe and really like it). I have 19 months between my first 2 children who are now nearly 3 and 4 years old and i can guarantee that one of them will want to go in the pram when we go out and about (I think I must have lazy children
) I have a baby so she goes in the cocoon below and one of the boys will go on top. I do have a maclaren and a buggy board. I wouldnt want to go far with the pram and buggy board because as another poster mentioned it's quite hard to walk with the buggy board attached to the pram. I think buggy boards are great for short distances but wouldnt want to go far with them. Good luck x