adding the RAM to a such old systems is pointless. not to mention that brand new RAM for it likely cost 2-3 times more than same amount Gb's of current RAM. you may find something really cheap on ebay,but again-it's kind of double sword,cause you never know,what you going to get. if you decide to upgrade the RAM anyway-make sure you run memtest. at least 2-3 passes after you install it.
http://www.memtest86.com/
burn the cd before upgrade. what ram do you have on old PC? i might have some free old sticks for ya. like GTC said-if you can do it yourself-decent PC would cost you couple hundred bucks, maybe less(assuming you are going to use old PSU,case,dvd,maybe hard drive etc.). good old XP should run just fine on it.
http://www.memtest86.com/
burn the cd before upgrade. what ram do you have on old PC? i might have some free old sticks for ya. like GTC said-if you can do it yourself-decent PC would cost you couple hundred bucks, maybe less(assuming you are going to use old PSU,case,dvd,maybe hard drive etc.). good old XP should run just fine on it.