Different people will give you different advice about different plugs/synths. Like I said, I like mojo for a horn section? But I'm sure some hate it. It's best to demo different things and see what you like/think sounds best to you? But this I know? Sample modeling "rocks hard..."
http://www.samplemodeling.com They're not cheap? And you get "an instrument?" You don't get a horn section. But that instrument, sounds like you have one of those playing with you? Their Mr. Sax T demo/example cut will make a believer out of you. I used it on my song that Timaaaaay remixed? "Just a lie - Reimaged Timbo" It sounds like a sax player is playing with me? Or as close as you can get it... Of course? That midi track looks like a piece of modern art ;-) With all of the bends and volume changes? (and you can change how hard you're biting on the friggen reed! "to add growl...") But, samplemodeling.com, I'm a believer and a satisfied customer, these guys are geniuses, artists, and ahead of their time IMO.