What to Do in BsAs

My parents are coming on Sunday (yay)! I've been trying to think of Must-See/interesting things for them to do while they're here. I'm not sure if any of you readers are currently in Buenos Aires or have been here before, but if anyone has suggestions, help me out. Here's what I have so far (they have guidebooks too, so it's not like this is a complete list):


Restaurants
Dinner: Tancat (Paraguay and San Martin), ***Cabana las Lilas (P Madero), Estilo Campo (P Madero), Happening (P Madero), Piegari (La Recova), Plaza Mayor, Juana M (near la Recova), Olsen (Palermo), La Cabrera (make sure you get free champagne), Siga la Vaca?
Lunch: Pizzeria Guerrin, La Continental, Sabatico, California Burrito Company?, that sushi place on 25 de mayo

Bars
Milion (Recoleta), Antares (beer, Palermo), Foro Ghandi (Corrientes- library/cafe/bar)

Sights
Feria de los Mataderos (Sunday)
Tango show? (Cafe Tortoni?)
Palermo: Parque 3 de Febrero, Japanese garden
Recoleta: Cemetary, market, Centro Cultural de Buenos Aires, el Ateneo Grand Splendid (bookstore)
Centro: Calle Florida, Galerias Pacifico, Obelisco, Plaza San Martin, Teatro Colon, Tribunales, Holocaust Museum (Museo de la Shoa)
Montserrat/Congreso: Avenida de Mayo, Plaza de Mayo (Casa Rosada), Palacio de las Aguas Corrientes
San Telmo: Calle Defensa (antiques etc.), Plaza Dorrego, Parque Lezama?
La Boca: Caminito, other touristy crap
Puerto Madero: Boat musem (near Azucena Villaflor), Puente de la Mujer (Bridge of the Woman)

Important Stuff: Try mate, try Malbec wine


Iguazu- 2 days
Airline: LAN (NOT Aerolineas Argentinas or Southern Winds)
Hotel: Sheraton
Bring: Passport (in case we can get into Brazil maybe???), sunscreen, bathing suit, BUG REPELLENT, walking/hiking shoes

Tigre- 1 day?
Restaurants: Gato Blanco, Rumbo 90
Do: Casa Foa exhibition, amusement park?
www.tigre.gov.ar