Well we're past the half-way point in most fantasy leagues.
Remember fantasy owners don't over think who to start in your lineups, go with your best players available, no matter what the match-up is.
Owners who have only one, or two wins, it's desperation time. That means go to the waiver wire early and often to pick that receiver, or defense who you think will have a productive day.
Also don't be afraid to make a lot of trades now. If you have a losing record at this point, that means your players aren't worth that much anyway.

With that said, here are guys that should be starting in Week 8:

Peyton Manning, QB, Colts - vs. Texans
Matt Schaub, QB, Texans - at Colts
Philip Rivers, QB, Chargers - vs. Titans
Tom Brady, QB, Patriots - vs. Vikings
Kyle Orton, QB, Broncos - at 49ers

Steven Jackson, RB, Rams - vs. Panthers
Darren McFadden, RB, Raiders - vs. Seahawks
Ryan Torain, RB, Redskins - at Lions
Jamaal Charles/Thomas Jones, RBs, Chiefs - vs. Bills
Arian Foster, RB, Texans - at Colts
Frank Gore, RB, 49ers - vs. Broncos

Mike Wallace, WR, Steelers - at Saints
Andre Johnson, WR, Texans - at Colts
Reggie Wayne, WR, Colts - vs. Texans
Calvin Johnson, WR, Lions - at Redskins
Kenny Britt, WR, Titans - at Chargers

Here some guys that owners should think about sitting:

Vince Young, QB, Titans - at Chargers
Aaron Rodgers, QB, Packers - at Jets
Drew Brees, QB, Saints - vs. Steelers
Matt Moore, QB, Panthers - at Rams

DeAngelo Williams, RB, Panthers - at Rams
Joseph Addai, RB, Colts - vs. Texans
Fred Jackson, RB, Bills - at Chiefs

Roy Williams, WR, Cowboys - vs. Jaguars
Steve Smith, WR, Panthers - at Rams
Chris Chambers, WR, Chiefs - vs. Bills