According to the rules you outlined, the home run would go down in the record books as home run #493, so it should be treated as such.

However, I can see the opposite view. If he does hit a homer, that would be the very first moment in his career when his total actually reached 500, so some kind of commemoration would be appropriate. The ticket stub and other momentos associated with this game should not be considered "500th Home Run Items".

Maybe Torre should take him out. Is the score tied in this suspended game? How about if Arod lays down bunts the rest of the night? Maybe not.

AROD has a pretty good life and career ahead of him. I think he will be able to move onto the next game without too much of a problem. He will be closing in on 600 homers soon enough.

It is conceivable that Bonds and AROD could end their careers with over 1500 homers combined, but not a single World Series ring between them.

Well, there we go. AROD now is the youngest player in the history of the game to hit 500 home runs.

Could he be the youngest to hit 600 homers, then 700 homers, and then the only Major Leaguer to hit 800?

I usually discount "paces" but ARODS steady, offensive production reminds me of the rote production Hank Aaron demonstrated. Hank was consistent. Like him or not, so is AROD.