Glad that worked out for ya
Well, Valve are working on it, as I write no doubt.
They are constantly improving their games. There were no 64-bit versions of the games (or source engine) when the Orange Box was released. The only reason that the 64-bit versions now exist (and were working up until a patch a few weeks ago) is because Valve wanted to bring performance enhancements to those with 64-bit OS. Like when they added HDR to Counter Strike:Source. They didn't have to, we had already bought the game, but they just wanted to give us a better experience.
And don't worry, their track-record is second-to-one. It will be fixed, and the 32-bit versions are still outstanding.
Good luck with the games, they all absolutely rock. Especially Portal