Absolutely right about not bothering with a travel system.
We have a Bugaboo Bee (expensive, but good quality) as our main pram/pushchair, with a Petite Star Zia (Cheaper, still going strong) as our portable pram. I like both, but generally (as has been said before) you want one pushchair that is light and portable, and one that is your main one.
Ideally your main one will accommodate shopping underneath, child facing you, ideally fitting in the boot of your car without taking the wheels off.
Your portable one needs to fit in your boot of your cars(s) as above, be light and easy to put up and down with one hand.
edit:Congrats Rookies, have a look at Baby Led Weaning and reusable nappies