OMGWTF??!!
I always was a fan of Steam and supported it, but as soon as I seen this post I loaded it up, right-clicked DoD: Source, clicked Preload, then 'Start Preloading', and it pretty much hung right there. All of the Steam windows went non-responsive. I restarted and now as soon as I click 'Play Games' or 'Browse Games', they never load, and Steam goes non-responsive. So it's pretty much hosed...

Fvcking Steam, now I can jump on the bandwagon and talk sh1t about it. Other than this, it's been GREAT, in fact pre-loading is a awesome idea, but gd I don't wanna have to remove it and lose HL2 and CS:S.