Unless you do video or photo editing as a primary use for that computer you will not benefit from more than 4GB of RAM. Even high end i5 systems only need 4GB except for certain uses. Why do you think you need more RAM? Do you ever use 100%?
That is actually exactly why. I've been using CS4 a lot more and doing more advanced editing on my photos. For the first time I'm using up to 3.8GB where my system starts to significantly slow down. As soon as I close CS4 my usage drops to 1GB.
I've also just started doing video editing using Sony Vegas and don't want my system to eventually hinder my video editing possibilities.
I was really hoping to spend no more than $40 for this upgrade, leaning more towards adding just 2GB. I though since DDR2 is now "old", I would be able to get it cheaper. Obviously this is not the case.
Yeah that will work as well. The Corsair was only $54 after rebate but thats an even better price. The thing is 1.8-2.0v so you will likely have to raise the voltage a bit to get the same cas latency as what you have. GSkill is also excellent RAM just as Corsair is.
DDR2 reached a "market saturation" point about 2 1/2 years ago. I got the 4GB I have now for $25 after rebate. Now factories are making DDR3 and it is getting really cheap.