Don't know if this is the right place to post this, but where can I get cans of compressed air to clean out some of the dust in my computer...and is it safe to do?!
If you are downtown there are dozens of computer stores on College street, specifically in the Spadina area. There is a Canada Computers there as well: Canada Computers - Contact Us & Locations
But yeah, practically every second store along the strip there is a computer store.