So I just baked the cakes, let them cool a little and then wrapped them in saran wrap. I plan on frosting and decorating them tomorrow. So do I keep them in the fridge and then take them out and let them come to room temperature before I frost it? Frost it while it's still cool from the fridge or keep them stored at room temp until I frost.

Thanks for any help and suggestions, I am pretty new to this.

I just store them at room temp until I need it the next day.

I also wrap them really well, but leave them out at room temp. The fridge may suck some of the moisture out of the cake, especially since it's not frosted yet.
Keep in mind that when you wrap them, they will be very moist and more prone to breakage and crumbs, so make sure that you put PLENTY of icing on the cake before you start to spread it w/your spatula. I use an icer tip and after the entire cake is iced then I use my spatula, and I've never had crumbs in my frosting.
HTH