http://www.john-p.com/textures/DX-IW/
High resolution texture pack for Deus Ex: Invisible War, it supersedes the older 'Community Texture Pack', John P's 'Cumulative Texture Pack', and BlumenKohl's 'Micro Texture Pack'.
The Unified Texture Pack contains over 790 textures and graphical files (.bik for instance). Since some textures are in various versions that you can choose from, about 740 will be in use after a full install, but over 790 in total is available.