If you are looking to make that jump to a DDR3 setup, then I would suggest investing in the Kingston KHX13000D3LLK2/2G kit, even if it's just for the simple fact that 1333MHz and above will surpass the performance of the top-of-the-line DDR2 modules currently out. The low latency of the KHX13000D3LLK2/2G kit will yield great efficiency, but don't expect massive overclocking at the stock timings; but then, who cares? It's a DDR3 module at 1625MHz!