climbing aconcagua

I want to climb aconcagua the first week of january 2008. Can anyone tell me if it's possible to organize the climb just then in Mendoza? Ofcourse this is the busy season.
Does anyone have recommendations on which company to book with?
Do all company's have packages with acclimatizing-climbs included?
What would be the prize per person for a 12-day climb of aconcagua?

Thanx,
Frank.

Thats right in the high season so advisable to book in advance if you want to do with an agency. All good companies include acclimatising time, normally on the approach routes with a few days at the first base camp. This website may be of interest: www.aconcagua.com.ar</a>

Whatever you do, don't stay at lacavahostel. It's run by disreputable management.