Dexing up a Warrior

[Lemonhead]

So my halfling warrior hit level 40 and I have Wrapped Spine/Frostbringer. I also have the 10/18 Velium Sword. I have been mostly soloing/duoing with a fungi, but I'd like to try a dex build for larger groups.

I'm up to about 120ish dex with what I've purchased so far, and it looks like I can theoretically hit 135-145 maybe, spending what I'd like. The thing is most items gimp me to some degree, so...

The question I have: Is there a number you guys feel one should shoot for? Or is there a number that "puts you over a hump" per se. I thought I read somewhere there was a number that proc rates jumped, or perhaps a diminishing return after that (not 200).

Thanks for your input.