I had gotten the Peg Perego P3 for DS, now turning 3. I also thought I would only have that 1 stroller for him. I absolutely love this stroller but still wanted/needed an umbrella type/lighter stroller.
I had bought the Kolkraft umbrella stroller that reclined and that was good for awhile. Now he is tall and has outgrown it.
So, I was searching and finally found a perfect fit for him and we just got it yesturday. It's the Maclaren Triumph and I got it at babyage.com for $104 with delivery!!(it's on sale for $109 and I found a webcode) Anyway, this stroller has a max weight of 55lbs!!! and a max height of 44in.!!! My son is only 31lbs, but he is tall so I see us using this stroller for a long time. It is very light, comes with a strap to carry it on your shoulder, has a basket, reclines, has a canopy and comes with a rain cover. It is so smooth and easy to push, and you can push it with 1 hand!! I too was going crazy looking for the max weight on strollers and most sites don't give that info or the info is conflicting. I was annoyed but found the answers by going to my local Babies R Us and looking on the paper work from the strollers. You almost always can find a better price online.
Good luck!!