Sometimes it isn't just about how many programs you have installed. Some programs eat up a lot of memory when they load. Look at what is loaded when your computer first boots and then see what is installed. Cut back on the programs that install automatically - only install them when you really need them. I have one program at work that someone installed on my computer that every time I re-boot I have to go and disable it. It is a multimedia program that I've never used and the IT folks are stumped how it got there.

If you can't figure out what is and is not loading when you boot - hit control/alt/delete at the same time and then look at the Processes tab. If you are DSL chances are there are a lot that are eating up a ton of memory. If you can, find someone that knows something about computers and have them help decipher what you really need. Be cautious to find somene that really knows what the hell they are doing though!

Good luck