From looking at your homepage, I see your a great fan of Ronald Reagan. Wasn't it President Reagan who promised that his amnesty would be a one time thing for this nation? What say you?
Bush's plan isn't a "one-time" fix, it's a continuing program that will undoubtedly be tweaked and fought over for decades, just like immigration laws have always been.
You may be in a position to lure some exceptional employees away from residential landscapers if you participate in the guest worker program. And they'll be able to drive.