I have a Dell Demension 3000 desktop. It runs as slow as as I do (I only have one leg) and wonder what to do to make it faster. A friend told me to use it as a anchor but I can't afford a new one. I have removed several of the installed programs and paused all applications except one when the computer starts. I was told I can increase memory which is 236mb. What can I do to avoid spending a lot of money?