I saw Time of the Wolf (or Hour of Wolf? I get the title confused with that cool Bergman horror movie...), but didn't realize it was the same director when I sat down to watch Cache. I just threw a couple in the Netflix que, though. Funny Games, in particular, sounds brutal.
I saw "Funny Games" and "The Piano Teacher." Both are pretty brutal, yet fall splendidly in line with Haneke's "toying with the audience" M.O. But be warned- they really aren't for the squimish or easily put off.