Looking for variety in dress pants

I have a modest set of dress pants right now. i have 4 gabardines from Brooks Brothers in charcoal grey, olive (i don't wear very often), navy and black. i have a navy woolen pant from J Crew, and i have a a pair of mini herringbone pants from Brooks Brothers as well. i also have a pair of Brooks Brothers "Cool flow" (the summer pants...whatever they are called)

I am looking for additional ideas in styles, colors, places to shop. Any help would be really appreciated. i am willing to pay up to about $250 for a pair.

Thanks

Looking for variety in dress pants