The reason you don't see much gain over ddr1 is that ddr2 really has nothing to offer, at present. In the future when ddr2 speeds take off, you will see a benefit. Right now, iirc, ddr2 also has a latency penalty that ddr1 doesn't have. This will all be made irrelevant when ddr2 speeds increase.
As to av, I probably said it earlier, avg if you want free, FixIt Utilities by On Track if you want the best.
As to av, I probably said it earlier, avg if you want free, FixIt Utilities by On Track if you want the best.