Catalan:User:MIckStephenson - Probably not much call for it, but I could use the practice!
Danish:User:Nwinther - I don't dabble around too much on danish wikipedia, but I'll gladly chip in when needed.
French:
User:Mroconnell - You should send me requests without hesitation and I'll do what I can.
User:scyrene - I have a degree in French, and will happily translate any articles sent to me. I will have a go at Portuguese and Catalan too (Spanish and Italian at a push), but defer to other users' expertise which no doubt exceeds my own.
User:Kudpung - French (practically native) => English (native). Have vinyard in the heart of the Rhône (grower of Syrah and Grenache, wine taster/blender)
User:Ian Spackman - no expert in the language or in the wine, but there are billions of articles to translate and I offer my services as the first of the millions of collaboraters LAMM707 will need! Now you can do me a good turn in advance of those translations. The weekend after next I shall be in the Val Cordera, just north of Lake Como. What should I make absolutely sure of drinking?
User:alphac Who better than an Italian from Asti could help in adding info to the Italian wines? :-D