I decided to start a thread to keep a list of 2010 candidates and their positions on HB 1393 and medical marijuana, plus their positions on recreational use, industrial hemp, and other related issues. This is all I have so far, but I will try and keeping adding to it.
Gubernatorial Candidates:
Dan Onorato - Democrat - Opposes HB 1393 | Lt. Gov. Candidate H. Scott Conklin - Democrat - Supports HB 1393, Supported HB 176 Ban on Cannabinoids and Salvia
Tom Corbett - Republican - Opposes HB 1393 | Lt. Gov. Candidate Jim Cawley - Republican - (No info yet)
Marakay Rogers - Libertarian (Write-in) - Supports HB 1393 and full legalization of recreational use and hemp | Lt. Gov. Candidate Kat Valleley - Libertarian - Supports HB 1393 and full legalization of recreational use and hemp

US Senate Candidates:
Joe Sestak - Democrat - Supports medical marijuana
Pat Toomey - Republican - Opposes medical marijuana
Douglas M. Jamison - Libertarian (Write-in) - Supports medical marijuana, full legalization of recreational use and hemp

State House Candidates:
85th District
Erik Viker - Libertarian - Supports HB 1393 and full legalization of recreational use and hemp
Trey Casimir - Democrat - Supports HB 1393 and full legalization of recreational use
Fred Keller - Republican - Opposes HB 1393

107th district
Kurt A. Masser - Republican - Undecided on medical marijuana, would consider it, had family members who died of painful conditions
George L. Zalar - Democrat - Supports medical marijuana

108th district
Tony Michetti - Democrat - Says he would likely support it, based on his experience as a nurse, but hasn't looked into HB 1393 yet
Lynda Schlegel-Culver - Republican - Undecided
Dodie Lovett - Green (Write-in) - Supports HB 1393, full legalization of recreational use and hemp

109th district
Thomas Anderson - Libertarian - Supports HB 1393 and full legalization of recreational use and hemp
Dan Rae - Democrat - (waiting for response)
David Millard - Republican - (waiting for response)

120th district
Tim Mullen - Libertarian - Supports HB 1393 and full legalization of recreational use and hemp
Phyllis Mundy - Democrat (Incumbent) - Co-sponsored HB 1393, Voted for HB 176 to ban synthetic cannabinoids and Salvia
Bill Goldsworthy- Republican - Opposes medical marijuana

125th district
Dennis J. Baylor - Independent - Supports medical marijuana
Mike Tobash - Republican - (waiting for response)
Tim Seip - Democrat (Incumbent) - (waiting for response)

196th district
William E. Kohler - Libertarian - Supports medical marijuana, full legalization of recreational use and hemp
Seth Grove - Republican (Incumbent) - Does not support medical marijuana
Curtis Kann - Democrat - (No info yet)

State Senate Candidates:
12th District
Ruth S. Damsker - Democrat - Supports medical marijuana (testified in favor of HB 1393)
Stewart J. Greenleaf - Republican (Incumbent) - (No info yet)

14th District
Betsy Summers - Libertarian - Supports HB 1393, full legalization of recreational use and hemp
Stephen A. Urban - Republican - Opposes medical marijuana and marijuana decriminalization
John Yudichak - Democrat - Undecided

28th District
Ed Gately - Libertarian - Supports HB 1393, full legalization of recreational use and hemp
Mike Waugh - Republican (Incumbent) - Unknown

US House Candidates:
10th Congressional District:
Chris Carney - Democrat - Opposes Medical Marijuana
Tom Marino - Republican - Opposes Medical Marijuana

Also you can go here to find what district you live in: http://www.legis.state.pa.us/cfdocs/legis/home/find.cfm
You can also find more about the candidates and issues that will be on the ballot where you live by going to these sites:
Wiki Voter Guide: http://www.wikivoterguide.com/
Project Vote Smart: http://www.votesmart.org/
Ballotpedia: http://www.ballotpedia.org/