BEST MINECRAFT TEXTURES BY C0LL1D3!
Minecraft textures created from terrain.png (in the minecraft folder). The water, the lava and the portal are really water in CSS and every textures have good properties.
Extract your .rar file, take the "minecrafttextures" folder and put it in c:/program files/steam/steamapps/USER/counterstrikesource/cstrike/material. /!\ DON'T RENAME THE MINECRAFTTEXTURES FOLDER OTHERWISE YOU WILL RE-EDIT ALL THE .VMT FILES /!\
To add textures in your maps you should download Packrat, open your .BSP file with Packrat, add the textures you've used and do "save".
Personally I built blocks which are 38X38X38. SEND ME A MESSAGE IF YOU WANT OTHER MINECRAFT TEXTURES!!(like golden or diamant block)
Have fun and make good maps :D