I just spoke to my lawyer friend -i am in Toronto- and he said average 12-16 weeks to get a LMO... far longer than before the new rules came out on July 31, 2013.
Once you receive your LMO, you can apply for your Work Permit. Please CIC site for Processing time of Work Permit. I suggest you apply online for WP once you receive your LMO, Online process is fast compared to Paper appln and you also get notified about your status of WP (in email) once they make decision.