I recently upgraded a six year old dell dimension P4 to 1 gig memory and a new 160 gig hard drive. I installed XP Pro and all that's on it are Ninja and QT. The box flies. I know guys buying new boxes and mine boots in seconds and runs twice what theirs does. I think XP Pro has a lot to do with it. I'm now looking at my HP laptop. Getting a little sluggish and wondering if it's the same kind of animal to upgrade. Only going to run Ninja on it but there's a bunch of other stuff on there. Little reluctant to clear the hard drive, install a new one and start all over on this one so, for now, just thinking of starting with memory...going from 1 gig to 2 gigs. It's an HP pavillion DV5220US with an Intel Centrino Duo running XP Media. Was not bought for trading but it's been doing fine...so far. Wondering if the memory upgrade will make a dent given this processor [T2050 1.60 GHz] as I'm not "up" on all the new stuff. Thanks all, V.