Hi Becky,
Though it's cheaper to buy an infant-to-toddler carseat than to have to get both capsule and carseat, I wanted to put in my 2 cents for the value of the capsule. Nothing beats not waking baby if you have to run errands. DS would fall asleep in the car, and I could pop him in and out at four or 5 shops, bank, post office, etc., and he'd get his whole nap uninterrupted while I did errands. In winter, especially, this was nice because all I had to do was tuck an extra blanket over him when I popped capsule out of car, and he never got chilled. Much easier than the dragging him in and out of carseat that I now have to do, which invariably wakes him and is so much more hassle. And if you go to a friend's for dinner, baby can sleep in capsule, etc. Also, if you are planning on having more kids eventually, you can have #2 in capsule while #1 is in carseat. This is also so much easier to manage when you have one who wants to walk -- at least you know baby is safe and snug.

We also got an inexpensive frame with wheels (Kolcraft makes the one we got, but I know there are other brands) designed just to hold the capsule. There was no bulky pram to manage in the car, and this was inexpensive enough that the convenience was worth it. By the time DS was big and strong enough for the carseat, he also was stable enough for an umbrella stroller. Even buying an expensive one (Maclaren brand, has high handles and other niceties) plus the frame with wheels for the capsule was only US$150 total -- so less expensive than the big prams and far more convenient, imo, because less bulky. Of course, if you need a 3-wheel for walks in the neighborhood, etc, your situation might not be best suited with this pair.

Anyway, just thought it might be good to have options. Have fun!
Annie

P.S. If you want convenience AND a really nice pram for walks, you could also consider telling your mum/sister/close friend what pram you would love to have as a group shower gift, if anyone is throwing you a shower. Everyone could contribute, and then you could buy the less expensive transporting-in-and-out-of-the-car type wheels for yourself. Just a thought...