The following language packs are now available for download here.Please note that these packs includes languages for the following applications: WSS, Office Server, Search, Project Server, and more ... :)
To find out how to deploy language packs for Project Server, read the following article.
ArabicCatalanChinese (Simplified)Chinese (Traditional)CzechDanishDutchEnglishFinnishFrenchGermanGreekHebrewHindiHungarianItalianJapaneseKoreanNorwegian (Bokmål)PolishPortuguese (Brazil)RussianSpanishSwedishThai
From Christophe Fiessinger's Blog : Time to Localize: More SharePoint Server 2007 Language Pack! The