Lands End do great polos too. Supima cotton is a classy finish. Long sleeves have a bit more gravitas. Buy in serious colours and in the sale.
Their flannel shirts can also be good. Tailored fit not too blousy. Lovely handle on the cloth. Buy in sale. Unfortunately last years colours were not as good as in previous years.
Interested to hear how madras works out. Looks less full (sleeve length etc.)than I wear. Also interested in the classic striped seersucker.