Read this sticky about avoiding getting ripped off:
http://www.canadiangunnutz.com/foru...to-reduce-risk-of-being-scammed-and-bad-deals
Really, almost everyone uses EMT now. If you're dealing with a seller who has a good trader rating you have little to fear. The system on CGN works well.
That doesn't mean be blind... We've caught scammers here who make dummy accounts and try to bolster their rating with fake transactions. You'll know to be suspicious as the accounts were recently opened, and the others giving positive feedback have very low trader ratings of their own... Follow the web of trader ratings. Anyone buying or selling on the EE soon deals with someone who has a SOLID and EXTENSIVE trader rating, and once you see one of those you can be quite assured there was a legitimate transaction.
When all else fails, get a LANDLINE number and call them. You can always use Canada411 to confirm the number and associate address.