Newbie~wan has a point. RAM prices have gone up a lot here recently, especially on DDR. You ought to do some price comparisons between a DDR system and a SDRAM system, and see which would be more to his wallet's liking.
Even though DDR is still more pricey, most DDR boards still offer greater upgrade overhead than the ones using SDRAM. Actually, it seems to me that support for most SDRAM based AMD boards has gone the way of the dodo, with emphasis now being placed on the DDR based boards. But that's just MHO.