Double Stroller/Pushchair

Any recommendations for the best double stroller? Need to be able to fit neborn and 3year old. Not sure if the side by side or one behind the other is the best way to go. I will be living near a town centre, so walking a LOT. Enough that I need the stroller to fit both kds. I want ease of use for trains/bus/etc and doorways.

Considering the sit and stand type options as well.

Thanks! 

No personal experience, but friends have a Phil and Ted's Navigator for their newborn/2 year old and are very happy with it. I see lots of them out and about, so they seem to be pretty popular.

http://philandteds.com/uk/Products/Push/navigator

ETA: They are pretty pricey, but our friends got theirs on Ebay, so worth a look.

Found a deal for a P and T Sport with double kit, extra side bag, matching carry bag, rain cover and newborn cocoon piece for 150BP. Had my husband go pick it up, as I am pretty sure it was a fantastic deal!

So excited to get over there with him and start to use it!

Sounds like a great deal! My friend's newborn looks so cozy in the cocoon.