If you are looking for PC2-6400 DDR2 SDRAM with some bling bling to it, you might be interested in the OCZ PC2-6400 Platinum Enhanced Latency XTC DDR2 memory kit. Find out in this review if this is the DDR2 memory kit you've been looking for! Link : OCZ PC2-6400 Platinum Enhanced Latency XTC DDR2 Memory Kit Review!
I think there's something wrong with out test bed. It doesn't want to go higher than 220MHZ FSB when the RAM divider is that 2:1.