I want to buy either a bonsai tree or the seeds for them and grow it myself, does anyone know a store in calgary that sells the seeds and all the supplies for it?

You can bonsai almost anything if you start it from seed, just make sure it's a "woody" plant (vs. herbaceous - like a shrub vs. a flower). Try googling for a good online resource and read up on the care of bonsais, as well as caring for houseplants in your neck of the woods (don't know where you live).