This is what I've got:

1. Intel Quad Core processor Q6600 2.40 gHz
2. Invidia 8800 Ultra video card
3. 4 GB Ram

I'm NOT interested in tweaking, downloads, add-ons, etc. All I want is a solid device that is realistic as possible for the kid; and for me to maybe try some flip-flop stuff on boring winter days.

By G4, I assume you mean RealFright G4. Where are these forums you spoke of?