I have bought 4 carriers and 1 stroller which has a carrier attached to it and can be taken off, it has a long sling and 2 handles. I also bought 2 stroll along carriers which i use, but i prefer the carrier that's attached to the stroller, it holds both my girls comfortably and can be used as a carseat.
I bought the stroller from:
www.ibiyaya.com