Newegg has the 2gb of the XMS2 (PC 6400) DDR2 800 on sale for really cheap after mail in rebate. Also has free shipping. Latency: 4 - $34 after rebate. http://www.newegg.com/Product/Product.aspx?Item=N82E16820145034 Latency: 5 - $28 after rebate. http://www.newegg.com/Product/Product.aspx?Item=N82E16820145590 Thats some cheap decent 2gb of DDR2 800. Just kept going through their stuff and realized pretty much all the XMS2 memory is on sale and with free shipping.