Heavy lunges work your hamstrings just fine, they also force an increase in calve flexibility, and help open up the hip ROM- good for working toward your deadlift technique.

Outside of those, work on your flexibility. Make it a priority, because if your posterior chain is too tight, then you are limiting your potential power generation, performance, and risking your postural integrity.
_________________________
Don't let the door hit ya' where the good lord split ya'
http://cord.mybrute.com