Virtual Clothes Horse, Shop the Finest, B&S here on SF are all good bets. Saks off Fifth, NM Last Call. Sierra Trading Post carries Isaia, believe it or not. If you want to stretch to bespoke, I have used Jonathan Behr in LA and his bespoke SCs are probably a little less than $2000 (depending on fabric) and they are full bespoke. I (and my father) have lots of stuff from him and he's awesome.