Special thanks to @ProfessorTom for suggesting UT2004 (we love the vehicle-equipped 'onslaught').
Special thanks to @Melancthe for suggesting Amelia (picked it up at Borders, discovered last night they failed to actually charge me for it...)
So little girl's computer arrives tomorrow - she's been playing all these games on her mother's netbook, which so far has worked out just fine, except UT2004 which is our "newest" old game.
[PSA] People - just say no to gaming on netbooks. [/PSA]