A few importatnt things i would look for are:

teh height for the baby. If you are looking at investing a bit extra in your purchase to avoid having to buy a second stroller later on, you need it to be high enough for an older toddler to sit in. Peg Perego is great for this - and if you pop down to DJ's at around this time of year you should wsave a fair bit on it.

Personally, i really do recommend spending a bit more and buying just the one pram/stroller which will do you for the entire time you need it. I got my Pliko on special when DD was about 2, and its still as good as new for the next bubba, when that finally happens!!

I had another peg before that one too - because we wlaked sooo much we literally wore it down - but, that one was shorther in the back and DD would not have been able to lay down in it with the sunshade from about 3.

AND!!!! highly recommend you splurge on a kapoochi bag!!!!