Does anyone know of a pushchair with a detachable toddler seat which has a weight limit of more than 15kgs. DD is nearly 15kgs now, and the baby isn't due until January. I don't like the idea of a double pushchair, and like the ones with detachable toddler seats. Someone told me she had an Emmaljunga Husky pushchair, and that the toddler seat could take the weight of a 5 year old. Can anyone help?