Third Base

We are currently in , what is without question, the Golden Age of third basemen.
In the NL alone there are studs David Wright, Miguel Cabrera, Ryan Braun, Ryan Zimmerman, and Garret Atkins all in their twenties, plus established stars Chipper Jones and (past his prime) Scott Rolen.
Oh, and in the AL lies the greatest 3B ever.

Lets break it down:

Mortal Lock
Alex Rodriguez- Since there's nothing to debate, let's try to figure out when A-Rod will break the all-time Home Run record. Let's assume that Barry Bonds retires after this season with 760 home runs. A-Rod should be around 515 at the end of this season. He would need 245 home runs, which would be 7 seasons of averaging 35. So the safest bet is 2013, maybe 2014, when he would turn 39.

Close Calls
Chipper Jones- Larry is about to have his 13th consecutive season with 21 homers
There are a few things that would turn him into a lock. One is winning his second MVP this year. Granted Dale Murphy won 2 MVP's as well but, Chipper is going to have an OPS over 1.000 for the fourth time, which Dale never did. He is also about to pass Murphy in RBI in 1,300 less at-bats.
Hitting 500 home runs would gain him entry as well, he has 374 today.
The best thing Chipper has going for him though is that there are fewer 3B's in the hall than any position. Plus, Chipper is better than most of them in the Hall anyway.

Rest of the Bunch
Scott Rolen actually hit 226 homers in his twenties and may have been halfway to the Hall, but his career appears to be on a wildly downward swing.