I'd say that as long as you stay around 725 you'll be fine.
Although if you're going to be playing SV/Hpal/DK you might as well stack stam and resillience for all your worth as you'll be the target of choice vs pretty much anything.
Edit: for comparison, with all the honor bought gear and some 10 man epics, I'm at 720 resillience, 21.somethng k hp, 32ish % crit and 3.7k AP in PvP gear and spec.
And I'm assuming that you are specced
0/15/56 with Wyvern, Monkey and disengage glyph.
Edited, Apr 11th 2009 7:14pm by Aethien