Tournament Situation

[SeppDeitrich]

The following hand came up during a pokerstars 10+1$ tournament.

We are midway through the tournament. There were about 500 entries, 170 players remain. Blinds are 100/200, no ante, and my stack is sitting around 5000 (which is about average). I am dealt wired 8's in the 4th seat, the players under the gun who has lost 2 large pots during the last orbit and seems quite loose goes all in for his last 2500. 2 players fold, and the action is on me, the 5 players yet to act have stacks ranging from 3-6k, 3 of them have me covered.

What should my action be?