The memory specialists

I have a Dell PC with intel pentium III processor which I had purchased around 4 years back with 250mb memory, The PC screen was slugisshely painting and it used to take long time to load an application, I thought for a while , instead of buying a new brand PC and investing on the same, why dont I upgrade my RAM to 1 GB, While I was searching on the internet for dell memory , I stumbled upon a site named 4allmemory dot com, I ordered online and got the 1 GB memory, installed the same, now all the application loads and runs at the speed of light, even the boot is fast too,