Yes, definitely. Buying gold and silver in preparation for the impending dollar decline is probably a good idea. This is so because oil is also a good inflation hedge or a hedge against a falling dollar. But rather than buying actual bullion or barrels of oil, it's cheaper and easier to buy the stocks of companies that mine gold or silver and drill for oil. If you are looking for gold, My favorites are Kinross Gold (KGC), Goldcorp (GG) and Marathon Oil (MRO). I especially like Marathon as it pays an excellent dividend and it's a potential takeover target. The best time to buy is on dips as all are pretty well priced right now with recent run ups. Again, it's much easier and cheaper to buy the producers rather than the bullion or barrels.

Buying silver is also a good idea in case of a hyperinflation(if our economy gets bad enough) Silver will still be valued when cash are worth about as much as toilet paper. That's when you really need silver.

So maybe you are also thinking about buying silver? If so, check this out. Acccording to http://recessionreadyamerica.com/2009/09/why-should-i-buy-silver/

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Why should I buy Silver, and not Gold?

Silver stands above all the rest when it comes to a situation where you would need trade and barter. Gold, while it has a tremendous amount of value in a very small volume, would be very difficult to trade with. Your single gold coin that is worth $1000 would surely be enough to buy anything you will need, but how would anyone make change? With worthless paper dollars or pennies and nickels? Silver coins are much more tradeable and come in more useful denominations.
Silver is also much cheaper than Gold and very easy to find. Before 1965 United States Half-Dollars, Quarters, and Dimes were all made with 90% Silver. Today the majority of coins are cupronickel, because even the copper in the pennies became too expensive in 1982 to continue making them. It would seem as if we have been robbed of the use of real money. Today we are issued worthless paper backed by nothing, and coinage with little to no intrinsic value.

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Yes,It is wise to buy precious metals during the recession.
If you can get it for a good price do it.I am investing in silver myself.The value will go up believe it or not.
It is much more valuable than the dollar at this point.