Need some steam help

For a long time now, every time I try to play either TF2 or HL2 episodes 1,2, and Lost Coast, I get the whole validating steam files, and then I get, "Steam servers are currently too busy to handle your request. Please try again later" no matter when i try. I've even tried changing country servers. This might be a Mac problem but can anybody help?

i've personally never experienced that issue... have u looked around on steam forums... might have some info there for ya.

Thanks, I'll look around some more. I'm just so lazy hehe.