Hi shopgirl,
I too am in the Niagara Region. I just upped my rate to $35/day for full time and $40/part time. I charge for all stat holidays and I don't make parents pay for my holidays, but they pay full fees if they want vacation time.
If you want to charge $40, I think you are going to have to really push your credentials (RECE) or your program if you plan on having one. It also depends on which area of the Niagara Region you are in as the rates vary from $20-$35 for full time in this area. There are a lot of daycares in this region, so it may take a while to get full (I'm new and still have spots to fill). Good luck and I hope you find yourself full soon!