We have just bought a Silver Cross 3D Pram system, it comes as a proper pram for newborns and this part (similar to a carrycot) comes off and it turns into a stroller. We also bought the car seat for it and the total was €580. Included in that we got an insert for the car seat for a newborn, foot cover and head cover thing for car seat also.
Raincover, matching changing bag, footmuff for stroller and a sleeping bag part that fits into the stroller.
It is very cosy and has everything you could need. The only disadvantage is it does weigh a bit more than some other travel systems, but has a side handle which makes it easier to lift and it folds up and down easily.
It was very important to us that we had a pram where the baby could lie completely flat as babies are not supposed to be in a car seat for more than 1.5 hours a day.