Where do I buy gold
This all depends on the kind of gold you would like to buy (bullion, bars, and so on). You can find many helpful suggestions and comparison sites/pricing for purchasing gold at: http://goldprice.org/gold-coins.html
When buying gold you can buy it in bars, bullion, or coins. Monex is a popular seller of gold that has low prices as well as fast shipping. They also have the option of financing.