What to do.. QQ.. What to do....

[Fnord]

how much of a key is position here?

Huge. A turn raise has good implied threat.

Or does position give us the oppertunity to push opp off his hand and/or define his hand to us so that we dont need to put anymore in the pot on the river?

Yup. Although I prefer to do this with stronger/weaker hands than our hero has here.