http://www.de-raid.net/mapping.html
most of them aren't new for the guys who are watching the project for a while : I announced the original sets monthes ago, and the final set mainly contains HL2 textures, but I announce them again because the urls had changed, and because there are some new textures too.
This announcement is just dedicated to people for are looking for new textures for Hammer 3.5, please note I totally don't care about anything you could think about them (if you like them, use them, else ... else plz just stfu I strictly don't care), and that I won't make new ones, so all possible request will just be ignored sorry (I am sick of HL and CS).
If you like these textures, you are free to use them, as long as you give credits and don't use them for crappy aim/ka/fy/he/whatever non-CS related map styles ...