Need a new seat for almost 5 year old

[Mommy2Two]

My DD outgrew her Britax Roundabout, and now we need a new seat.

What would be a good one to get? Is she too young for a High Back Booster?

[Joolsplus2]

I'd probably go for a good combination seat/harnessed booster, like the Graco Nautilus or Argos or the Britax Frontier. That way you can keep her harnessed as long as you need to (most kids are kind of wiggly and don't sit right in a booster right at 5, some do, but you don't really know until they are in it...) and they become fine boosters later to last up to age 8 or 9 (and longer, if you use the backless version of the Graco, or want to use the highback in the FR to the max, it fits kids up to 11 easily).