I have been seeing a few posts for boosting dex builds and while I don't necessarily agree with most of the stuff posted, I do think they could use some attention. One element that may be considered is the offhand damage. Currently it is set to being 1/2 str bonus (flat), an alternative to this could be 1/2 or up to dex bonus whichever is higher.
This gives high dex toons a chance to get some advantage without the ability to dumpstat strength. Places some more emphasis on dex in 2 weapon fighting as well, without disadvantaging current builds.