$30+ Jose Reyes, Jimmy Rollins, Rafael Furcal
$24+ Felipe Lopez
$13+ Edgar Renteria, Adam Everett, Omar Vizquel, Clint Barmes, Joel Guzman
$7+ Hanley Ramirez, Dave Eckstein, Ronny Cedeno, JJ Hardy, Jack Wilson, Khalil Greene
<$6 Chrisitan Guzman, Royce Clayton, Neifi Perez, Rich Aurilia, Cesar Izturis, Alberto Callaspo
Shortstop is not the position to use to add power to your team. Even the $30+ ones are there mainly for SBs. I must say, though, that Rollins and Furcals' low double digit HR do add that extra umph to breach the $30 levee.
Felipe Lopez had the best HR year last season. That may puch him north of $30, but I have a hard time seeing it actually happening. 20 or so HRs does not a $30+ player make.
You could put all the $13+ and $7+ together and make it $7-$17 range. I can see all of them going for $12 or $13 and none would be too overvalued or too undervalued.
The one player to note is Joel Guzman. He played SS last season for AA Jacksonville. If you draft before the regular season begins, this will be the position where he qualifies. If so, a $15 bid on potential is not out of the question. He should hit 20 HRs as a SS-eligible and that would get him close to the Felipe Lopez range.