no controllers yet, but sony did announce it in june. It is supposed to be
out spring 2010. I know a lot of people who have the wii and it is a lot of fun. Having said that, I picked up a ps3 slim 3 weeks ago, just got through Bioshock-fantastic, I am now playing
Fall of Man-the AI is incredible, waiting in the wings is Dead Space and Ninja Gaiden Sigma. all of which I picked up for under $20 each.
to add to it, the web browser is great on my 52 inch high def, and just watched transformers on blue ray. In addition, Netflix just announced movie downloads will be available to the ps3.
But back to topic at hand, I am pretty excited they announced the new motion controller, but we will have to wait a bit before games are available.
also, i dont know how old your kids are, mine are very young, so there are not many kid friendly games on the ps3 that they could play like there are on the wii. (to be honest, I bought it for me not for them)