OK, going to give some info out here that may help some of you. Grabbed it from Baseball-Reference. These are the top 9 stadiums, and what I expect their effect will be.

If hitting is up 10% for a stadium, expect a 5% increase in PB value for pitchers, a 5% decrease for hitters(only half home games). If hitting is down at a stadium, expect PB value up for hitters, down for pitchers.

These are approximations, but they should help. It takes into account HR's, ave, runs, etc. and puts it into one number. I compared 2003 to 2002(and a little bit of 2001) Remember to only use half the number listed below since only half the games are played at home.

Montreal - Hitting up 13%
Colorado - Hitting down 8%
San Fran - Hitting up 6%
Cleveland - Hitting down 6%
Cinci - Hitting down 5%
Arizona - Hitting up 5%
Anaheim - Hitting down 5%

Example: Helton PB value currently is 7.0 New value might be 7 x 1.04 = 7.28

All the other stadiums might only have a 2-3% overall effect, which might only have an actual effect on players of 1.5% or .1 PB value, so I wouldn't worry about it.

Also remember if hitting was up, a PB value for a hitter will go down while a PB value for a pitcher will go up.

If you don't like my info, research on the net. Their is tons of info.