Should I trade Chris Johnson and Steve Smith (Giants) for Brandon Jacobs, Terrell Owens, and Knowshon Moreno?

No do not make that trade. Chris Johnson is an excellent RB and Jacobs is looking to just be the power while Ahmad Bradshaw gets the shine. Chris Johnson is also currently third in rushing in the league. Steve Smith is huge. 4th overall in points in FF. TO is garbage . There is no benefit for you in this trade.