I usually use Tulving, in my experience they are the dealer to beat. Still, on large purchases you should always check around and see if there's a better deal available. Tulving's prices include shipping and insurance, spot silver when this was posted was $10.21/ounce and they were charging $10.30/ounce delivered.
IMO FWIW circulated pre-1964 silver US coins (aka junk silver) are better for monetary insurance than bars or rounds, YMMV of course.
lpl/nc
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http://www.tulving.com/goldbull.html90% Silver Coin Bags
$1,000 Face Value-715 ozs Of Pure Silver
Current Price-$7,359 For 715 Ozs. Of Pure Silver
That's $10.30 Per Oz. Of Pure Silver
Minimum order is 1 Bag. All Silver Shipped Via UPS.
Many people want to own pre 1964 silver coins. This allows a person to have silver in very small denominations. Each $1,000 face value bag contains approximately 715 ounces of pure silver. Each bag is a solid bag (same denomination) of either silver dimes or silver quarters in circulated condition minted 1964 or before.