I have a decent Devil Star with dual leech (5 Life/6 Mana), 284 ED, other good mods and two sockets. ONly drawback to it was that it had 50% Chance to Flee, and although it is good sometimes, it gets very annoying. Oh, and it has 40-50 IAS on it with a Shael in it too.
As good as that seemed, it still gets owned hard in Hell with my Zeal Pally.