Sources for information

http://www.easternnumismatics.com/

http://www.daveramsey.com/

http://clarkhoward.com/ 

http://www.garynorth.com/

http://www.swissamerica.com/

http://www.kitco.com/

http://www.coinflation.com/

http://globaleconomicanalysis.blogspot.com/

 http://the-moneychanger.com/entry.phtml

http://www.dailyreckoning.com/

www.currencysource.com

www.xe.com

Sources for purchase

http://www.cmi-gold-silver.com/small-survival-gold-silver-coins.html

http://www.coinsbullions.com/

http://www.nwtmintbullion.com/

http://www.kitco.com/market/

http://www.the-moneychanger.com/commandments.phtml

http://www.apmex.com/itemswesell3.asp?source=goog&kw=gold+bullion+coins

http://www.amark.com/

http://the-moneychanger.com/entry.phtml

I also would not rule out your local coin shop and ebay can be a source for reasonable coins.