Thanks for the advice all. The hard part is, how do you know how much dex you need for max block, for any given level, with any given shield. I'm nowhere even close to that time yet. I know for everytime you increase dex to max block, if you move up a lvl, or get to a new act, it could be not at max again. LOL I'll have to play it by ear.
I'm going to look for what's needed for Exile. I guess it contains a chace for crushing blow. I don't know why I think I'm going to find these runes so easily for all these runeswords I'm thinking about using. LOL
Halo
Edit: I see it has a 15% chance for life tap, not crushing blow. AH! Very cool, with 5% to max fire and cold resistance, and +2 to offensive auras. Too bad I won't be using any offensive auras, well, except for sanctuary. hee hee Vex Ohm and Ist. Yeah, like I'll ever have the runes for that. haha