I am a larger fellow (read fat

) and I am looking to get some new shirts for this year. I tend to get very warm (more than most, wonder why that is) and was wondering which shirts seem to be the most breathable?
I have some Honigs currently, but they seem to be a bit heavier and the "mesh" a bit smaller than some. I have been checking and I was thinking about the Dalco shirts from Ump-Attire. Any comments, concerns, hikus?