Re: Dirk for Parker/Martin worth doing?
Your team is deep enough that I would definitely do the trade if I were in your position. You have quality players off the bench so it would create space to play one of them. You can also take a flyer off waivers that might turn out well, depending who is on it.
I also don't think Parker is going to keep up his play the entire season in terms of assists and steals, since they are both at a career high by far. Kev Martin always worries me, since he seems to get injured at least once a season.