I've got a Strider Plus, costs a bit more than your $400 budget, but includes the toddler seat and all the accessories. Both seats have a shade canopy and the sun and rain covers cover both seats. Both seats recline so toddler can lay back for a sleep too. There is lots of space between the two seats too and you get some adapters to make the top seat sit slightly higher so there is even more space. The shopping basket is a good size and you can access it from the front and sides of the pram. It's easy to maneouvre and folds easily even with both seats attached. So far, I'm really happy with it.