Any advice for choosing a public storage box?

We are planned for two week trip to Vancouver. We have packed everything but I am concerned about few outdoor gadgets in my home. Is there any way of secure my valuables for a two week of time. I think public storage boxes are best option for storing appliances and furniture. Here at Toronto, companies like Migson storage solutions offers Public storage boxes. But I don't know how much they cost. I have checked their website and found different sizes available. But, there is no information about the rental charges. Do anyone here have experience in using such services? How much they generally cost?

Some thoughts...

• how big are these "gadgets". Have you considered moving inside the home or garage?
• I too worry about what goes on outside my home. I'm a huge fan of IP cameras like DropCam.