Rob, I am so happy to see someone wants to pronounce Finnish correctly.
Ivo already gave good advice, I can only be a little more precise:"The uu in Nuutajärvi is a stretched ooh - and the ä is pronounced e as in bed. [nootajervi]"
Actually the ä is pronounced exactly like in "bad" and the j like the word "you" begins.[nooh-ta-yär-vi]
Notsjö has an Umlaut - so that is the eu sound from French [notsheu]
Notsjö is Nuutajärvi in Swedish. (both languages used in Finland)
the ö in the end is like if you doubt and say "errrrr..."
And begins like Nuutajärvi, so:[nooh-t-sher]
(forget the r from the end tho)
Kaj is not Kay, so to be sure... [Kah-ee]
but very short!
and btw the Franck is not with ä ! so you should say [Fr-aah-nck]
but very shortly!
I will have to take this opportunity to correct at least this from http://glasspeak.yobunny.org.uk/ Riihimäen Lasi Oy
would be [Ree-he-mäh-en]
(the ä like in "bad" remember?) [Lah-see] [OO UU]
(where there's a long single vocal "o" from the beginnin of "oh" and a long single vocal from the end of "you", so you are better off even if you say "oh you"
rather than oi)
(O.Y. is simply short from "Osakeyhtiö" meaning company like Ltd.)
Now you're ready to mingle and be mistaken for a Finn!!?