I'm Building a DAW and I'm planning to get 512MB either Corsair or Kingston DDR400 3200. Both of the models i'v had a look at have a CAS of 2.5. One person has told me that it is better to get 2 sticks of 256 because data can be sent to two sticks quicker than one. I've also herd that it is better to go with one stick of 512MB ram. What is the right answer?