MacWorld is reporting that contract prices for the most commonly used DRAM (dynamic RAM) computer memory chips have dropped nearly 18 percent in the past two weeks. Memory prices have been hovering at all-time lows for the past year.

The article cites DRAMeXchange in explaining the decline is due DRAM makers building too many factories to compete against each other and on hopes people would take to Microsoft Windows Vista, which requires much more DRAM than Windows XP – which they haven’t.

Prices are anticipated to stay at low levels throughout the rest of the year.

You can get current prices for your particular Mac here …

So now’s a great time to buy.