Replying to Argentina - Skiing day trip from Mendoza?

Traveling with the wife for a week+ in Argentina the last week of August. I am wondering how plausible it is to make a day trip to one of the resorts from the Mendoza area, or if I need to figure on getting there the night before or something different. Also looking for recommendations on where to go- since I'm travelling with the lady i'm not necessarily looking for the most gnar terrain, but more of a decent selection of groomers to cruise down.

Also, any suggestions on must see things to do while there are appreciated. We have 8 full days in the country, right now we are leaning towards splitting time between Buenos Aires and Mendoza, but have not completely ruled out Northern Argentina either (Iguazu or Salta).

Thanks in advance, NS