Here are the specs on the laptop I have... it's a MacBook

Hardware Overview:

Model Name: MacBook
Model Identifier: MacBook1,1
Processor Name: Intel Core Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache (per processor): 2 MB
Memory: 2 GB
Bus Speed: 667 MHz

I bought my laptop from a guy who tweaked it himself. It is maxed out more than any typical Mac that you'd buy from a certified dealer. It's got a ton of apps and utilities on it.

We had been using Norton for problems, but they've been using Disk Warrior lately. Another application for issues that I've found is Onyx.

The G4 will last them for a while, but have been out for a few years. eMacs aren't a bad deal either, and getting a Mac that has a Core Intel Duo processor is a better deal as well.