Just got my '09 Mac Pro last month with the stock 6GB and had planned on eventually upgrading to either 12GB or 16GB, finances permitting; At the time when I priced out the RAM upgrades from OWC, it was $220 for the 12GB kit and $290 for the 16GB kit. Over the last few weeks the prices have risen dramatically to today where it's almost $100 over the previous prices; I've always known the RAM market to fluctuate, but is there a shortage of supply going on?