I have the following ubuntu systems,

at home:
amd64 x2 - nvidia fx 570
via epia sn18000 - nvidia geforce 8400 gs (jaunty)
asus eee pc 900
Playstation3 (jaunty)

at work:
core 2 quad - nvidia fx 570
core duo laptop - nvidia geforce go 7400 (jaunty)