Upgrading the memory will be like night and day; they will notice it right away and will appreciate the difference. I wouldn't bother upgrading to XP. You will experience too many headaches for it to be worth it. I had my WEB-PC for five years. I really liked it.

I forgot to post a reply here, just thought of it when I came to get some help with my Inspiron. Anyway, I got them the RAM but to be honest it wasn't night and day like you said. The computer was still really sluggish and crashed a lot, I decided using the recovery disk would be the best option but even after that it still ran terrible. Finally, I decided since the computer was running so bad I'd just install XP for them and let them be happy... that's where night and day came into play. I could not believe how fast it was running, it hasn't crashed ONCE! I still can't believe it, I'm typing this from the computer right now.