Peace,happiness and prosperity to you all in 2004.
I'm offline for a few days so I'll say it now.

Denmark: Godt Nytaar
USA: Happy New Year
UK: Happy New Year (at least we can agree on that one!!)
Germany: Frohes neues Jahr
Germany (Vogtland): ä gesunds neies joar: -)
Spanish (Castellano): ¡Feliz año nuevo!
Català o Valencià: ¡Feliç any nou!
Lithuania: Linksmø naujøjø metø!
Pakistan: Niya Sal Mubarak!
Netherlands: Gelukkig Nieuwjaar
Belgium: Gelukkig Nieuwjaar!
Italia: Felice anno nuovo !
Swedish: Gott Nytt År
Arabic: Sanah saeedah!
Vietnam: Chuc Mung Nam Moi
Wales: Blwyddyn Newydd da
Thailand: Sawasdee Pee Mai
Indonesian: Selamat Tahun Baru!
Chinese: Xin Nian Kuai Le
Malay: Selamat Tahun Baru
Urdu: Naya Saal Mubarak
Slovenian: Sreèno Novo Leto
Poland: Szczesliwego Nowego Roku
FRANCE : Meilleurs voeux et bonne année !
Portuguese: Feliz Ano Novo!
Russia: S novym godom!
Farsi(persian) :Sale Noo Mobarak
Afrikaans: gelukkige nuwe jaar
Czech: Stastny Novy Rok
Norwegian: Godt nytt år or Godt nyttår
Macedonia: Srecna Nova Godina
Romania: La Multi Ani !
Romania: Un An Nou Fericit

;Indian language section

Hindi: Nava Varsha Ki Shubhakamana.
Marathi: Navin Varshachya Shubheccha
Punjabi: Nava Sal Mubarak
Gujrati: Sal Mubarak
Telugu: Nutan Sanvatsar Shubhakankshalu
Tamil: Puththandu Valthukkal
Konkani: Nava varshache hardhik shubhashayu
Tulu: Matheregla posa varshada shubhashay
Kannada: sarvarigu hosa varshada hardhika shubashayagalu
Malayalam: Ellavarkum pudiya varshathinde shubhashamshagal