I need more memory. What kind do I get?

I have a HP Pavilion 542x that I got in late 2002. It has a 1.8Ghz Intel Celeron processor, Windows XP Home SP1 (recently ordered SP2 on CD) and I curently have 256MB of RAM.

I'd rather not spend too much, but how much should I get, and what kind? I usually always have tons of stuff running, like iTunes, Avast, ZoneAlarm, Firefox, Weatherbug, AOL...you get the picture.

I need more memory. What kind do I get?symantic

Your computer can hold a maximum 2 Gig of memory. I would say to add a Gig (1024MB) of more memory.

Your computer uses DDR PC2700 memory.

Go to crucial.com and enter in your computer info.

I need more memory. What kind do I get?viruses

Hi,Well if you want to upgrade the memory ram but you don't want to spend that much of money,you can get another 256 and that will be 512,but if your PC or laptop have just one memory ram slot then you have to take the old 256 out and insert a 512 one ,That should be enough for the moment and the brand I prefer is KINGSTON or PNY, OK
Try www.newegg.com they have quality goods at not near the same price as best buy would have them.

It doesnt really depend on what brand of memory you buy, but stay away from something too cheap (1GB for about 70-100 bucks is good) Currently i have 2GB of RAM and it cost me about 190 bucks total. Your RAM is quite low honestly, and you might want to think about grabbing a 1GB stick to add on. It will make it MUCH MUCH faster.