I'm really not that savvy when it comes to deals or fashion, so please go easy...
Saks Off 5th has quite a few of their suits (Saks, Lauren, Calvin Klein, etc) on sale for $199.99. Many of them are also stacking with BOGO for suits. Going to their BOGO promotion misses a lot of the ones that are eligible - so there's going to be some trial and error here. (My apologies if this isn't deal-worthy.)