Hi everyone

I recently found a speed bag/heavy bag rig that someone was tossing in the trash and it's pretty much brand new. I've got an old heavy bag that I can hook up, but I don't have a speed bag and have no idea what to look for.

Brand?
Size?
Anything else?
What height should it be adjusted to?
Also anybody know where exactly to get one in Toronto, Ont.?

I'm really not looking to spend too much money, but don't want something cheap that will fall apart in a year either...

Thanks in advance.