answer:What OS are you using? I’m using XP and Ubuntu 7.10 with 1 GB RAM, and both of them work just fine. I could have some more for Ubuntu though, but I think that it shouldn’t be so necessary with Firefox 3 (which consumes far less RAM than Firefox 2). On the other hand, if you really are into video/audio/image editing, more RAM will always be better, but I really couldn’t say how much better. I would wait to check the current improvement (from 512 MB to 1.5GB, it surely will be noticeable). Only then you might want to re-evaluate buying more RAM (or just get a new laptop)