My C&K where I have put DD's name for 2010 will take mid year entries - that is to say - if you don't get in for the year you request then they will keep your name on their waiting list for the whole year and if any kids drop out, then you might get a spot for the remainder of the year.

So I guess if your child is old enough, you could always put your name down in hopes that something will come up mid year? I don't know if all C&K's operate their waiting list this way though.