Money in the Bank... What to do with it?

So for over a year now, i've had arround $14-15000 sitting in a chequing account not earning anything. I was fresh out of college and wasn't really worried about earning interest, etc etc... In the next year, I am going to want to buy a house. What should I do with this money? I have heard of TFSAs, RRSPs and some others, but i'm not to familiar with all of them. Can anyone shed some light on what my best options would be, keeping in mind I will want to dip into some money for a down-payment?

Cars are paid in full, and have no debt charging me interest.
Thanks