I need some advice. I know next to nothing about computer specs, but I'm planning on getting a new computer soon. I realize that it will probably have Vista on it so it will need lots of RAM, but thats about all I know. My son was looking up different computers and comparing prices, etc. This is one of the options he came up with. ------------ Hp s3400z Computer Windows Vista Home Premium w/Service Pack 1 2.3 GHz AMD Athlon 64 X2 4400+ dual-core processor 3GB DDR2-800MHz dual chann...