I really like the Willamette Valley Pinots from Oregon.
A couple really good ones I've had recently:
- Benton Lane (I think it was an '04)
- Domaine Serene 2004 Evenstad Reserve
I missed the whole Malbec discussion. Went to Argentina in September 2005 and spent a few days in Mendoza. We hired a driver to take us around to a few wineries. The exchange rate was about $2.9:1 so it was pretty affordable. Pretty good wines and nice tours.