Im looking to start investing in some gold and silver coins for my family future, but know very little. What id like to know is are there any tip or tricks for telling the authenticity of gold/silver coins? for instance is there anyway to tell the difference between a real american gold buffalo vs the cheesy as seen on tv ones? are there some reputable dealers online, or ones to stay away from? how much above spot should i expect to pay? Like i said I'm very new at this so please forgive my ignorance, any info is appriciated.