The $8,000 bottle of wine that Will (Josh Charles) receives as a gift, is a 2006 "Grand Vin de Chateau Lachelier" (Premier Grand Cru Classe Pauillac). Though never mentioned by name, the label can be glimpsed very briefly just as he proceeds to uncork the bottle. Oddly enough, he drinks the wine from a mug instead of a fine wine glass.
Amy Acker, playing Trish Arkin in this episode, is married to James Carpinello, who played Detective Anthony Burton in several season 1 episodes, ending with this one.
Chris Noth (Peter Florrick) & Daniel Oreskes (Ray Ernesto) also worked together on episode 5.23, Pride (1995), of Law & Order (1990) as Mike Logan & a Durban Campaign Manager respectively.
The bottle of wine is not worth $8,000 as no such premier cru Bordeaux exists