Try www.councilofelrond.com <<< that has Elvish phrases (Sindarin AND Quenya and various other languages of Middle-earth)
Also, http://www.uib.no/People/hnohf/index.html <<< although, if I am perfectly honest, I haven't looked at this one properly so I have no idea about how good/reliable it is. However, I get the impression it's good!
Hope that helps!