Well, I've been browsing around for HL2 mapping tutorials, and I found some made by Waldo himself on the Steam Forums

You can find them @ Valve's official website forums for steam, and all of Valves software.

Steam Home (news, etc)
http://www.steampowered.com

Source SDK Forum (http://www.steampowered.com/forums/forumdisplay.php?forumid=41)
_____________________________________________

Tutorials you'll find

Waldo's Source SDK Cookbook (http://www.steampowered.com/forums/showthread.php?threadid=170869)
(includes rain & snow, and more)

Hanging Wires (telephone wires, ropes, etc) (http://www.steampowered.com/forums/showthread.php?threadid=170388)

Ground Morphing (terrain, etc) (http://www.steampowered.com/forums/showthread.php?threadid=170388)

Water (http://www.steampowered.com/forums/showthread.php?threadid=170973)

To you mappers I highly suggest visiting this forum frequently for basic tutorials from Valve and others. These are probably in the Source Documentation (http://www.valve-erc.com/srcsdk/) as well but I posted them to spread the word. Even if you do not have the editor yet, read them anyways, take notes, etc.

cool, thx watchtower.

i had a little look at these earlier and i have to say terrain is heaps easy now :D thanks for the links bud

Sourcepowered forum is closed. Discussion has been moved to VERC Collective's forums -> http://www.chatbear.com/board.plm?a=boardlisting&b=4986

where it belongs :>