got Broadband, still don't(and never will) want steam.
Hate to break it to you, but even if you buy the retail version of HL2, you're still going to have to install and connect to Steam in order to play the game. Steam functions as both a delivery service and a WON successor--and yes, to play the single player game, you must have Steam open. Having an internet connection is listed in HL2's minimum requirements.
anyone know if HL1: source comes with all the opfor and blueshift expansions as well?
No. Blue Shift isn't even available in its original form, due to neither Gearbox nor Valve wanting to take the time out to make it Steam-compatible (and it's not a simple matter of replacing WON with Steam.) HL:S is simply HL1 running in the Source engine. This means you get nice physics and water, but the graphics are 100% the same. Valve's probably waiting for the mod community to release a graphics pack. No OpFor: Source has been announced, but if they do, it'll be just like HL: Source--old textures, new water.