Memory Prices Plummeting
 

Since more memory is the one thing you can pretty much assume is needed in any Vista system, new system or upgrade, you have to suspect supply is exceeding demand.
http://overclockers.com/tips01126/

On top of price redution from both AMD and Intel, April 9 and 22 respectively. The month of May likely be the best time to start looking for a new system.
With anticipated loss for AMD in 2007, this might be the last processor from AMD under the current management. Long live ATI!!