How do I pick out a new computer?

[Jeff]

I think what will fit best the needs of your mother would be a computer with a lot of memory.

For the processor and the hard drive mid range products should be enough.

Personally I never bought a computer at Best buy but in other stores they like to sell you high priced stuff with your computer like Anti-Virus, printers, high end mouse or keyboard. I suggest you to refuse their offers unless you feel you really need it.