C.B.
If you do it so you can take hikes and such, get a good double jogging stroller that can handle rough terrain. Even if you can still carry her now, there will soon come a time when you are just too tired. I used my double jogger for years, even when the older one was not with us the younger would still sit and I could put groceries or a lunch cooler in the 2nd seat. When our 2nd was born, we padded her seat and laid it down, so she came with us from day 1 (well, maybe day 30 :)
Go to a good store and ask for their advice based on your needs. I had selected a specific stroller and folks at Tiny Totland in Manchester asked all the right questions (terrain, usage, folding ability, weights, etc.) and actually advised a different one than I selected and they were right.