My setup is like this: http://us.battle.net/d3/en/calculato...YTUR!bX!aaZaaa
I stand back and fire a couple of dire bats and then clean up anyone who escaped it with splinters. Monsters almost never get up on me 'cause I kill them too fast. Increased attack speed and Int make a really big difference in your damage.
How are you getting killed? I'm guessing that you need to find some +Int equipment and get your damage up so you can kill them before they get on top of you.