The hotel is about 10 minutes (uphill) walk to the Brevent lift. It's close to the Tourist Office where you can buy lift tickets. There are a large number of sports shops in the town with hire facilities. If you click on the Skiset link at the bottom of most pages on J2ski, you can choose a hire shop and equipment in the town, and also fix the prices with a saving on the walk in price.
Lift Ticket Prices in Euros for 2010
http://chamonixinsider.com/2009/09/18/chamonix-season-pass-2010/
Decent Sport Shops:
Sanglard, Snell, Cocquoz Sports from personal experience.
Suggest you browse this site for local info:
http://www.chamonet.com/listings/Chamonix/Ski_Rental_&_Sports_Shops/5/ALL/ALL/ALL