Thanks for the response...much appreciated. Yes, definitely will be buying a matching RAM module, that is if I do decide to go for the upgrade. I just want to make sure that it makes sense to add that next 2 GB of RAM for the memory gain and to activate dual channel.
As you said, in your post before, I shouldn't expect much of a gain with the addition of another 2 GB of RAM to a 32-bit XP system. Basically, my problem is after installing antivirus/antispyware software, I noticed that things can be a little bit slower when I open up multiple applications and on startup (which of course is expected). I am wondering if the solution to smoothen things out is the addition of RAM or would I need to upgrade my processor when I upgrade the RAM in order to get the system moving as it was before? Anymore thoughts from you or anyone else on this would be greatly appreciated. Basically, I want to re-gain my system performance with the new software installed but avoid spending money on a new processor. Would the RAM upgrade alone be worth it? Thanks guys!