Here's my Ripper-filmography so far, not including the movies above:
(movies with Jack the Ripper... or very close)
The Lodger (1944) - A masterpiece, without a doubt.
Man in the Attic (1953) - Haven't seen it yet, but Jack Palance is Jack!
A Study in Terror (1965) - Love this one, quite bloody too and good atmosphere.
Hands of the Ripper (1971) - Okey, okey! this is about his daughter, but I still sees it like a "real" Ripper-movie)
Jack the Ripper (1976) - Klaus Kinski and Jess Franco, nothing to do with reality - but fun!
Murder by Decree (1979) - Wonderful and classy movie by Bob Clark.
Time After Time (1979) - I love this! Very entertaining time-traveling movie!
Jack the Ripper (1988) - Great mini-series with Michael Caine.
From Hell (2001) - Underrated and gory.
Das Ungeheuer von London City (1964) - A Bryan Edgar Wallace-story about a copycat in London. Not bad.
Jack el destripador de Londres (1971) - Sleazy favorite, also about a copycat in London. With Paul Naschy!
Ripper (2001) - I'm probably the only one who likes this slasher!
Kolchak: The Night Stalker (1974), "The Ripper" - Maybe not the best episode, but still good.
Friday the 13th: The Series (1987), "Doctor Jack" - Nice episode and a little favorite of mine.
I'm also wondering if I should dare watching David Hasselhoffs Terror at London Bridge or the Tom Savini-turkey The Ripper from 1985. I actually would like to, if they where out on dvd so I could own them.
Maybe one day...