I will have a similar age gap between my two kids. I found a Valco runabout deluxe pram with a toddler seat on e-bay that i will be using for my two. I also have a couple of carriers that i can wear either bub in if that works better. My DD doesn't sleep in a pram, so the toddler seat is fine for her. It wouldn't work if you wanted your both kids to be able to lie down at same time.

I love the look of the City Select Baby Jogger pram but can't justify the money at this stage.