Here's some more rental options:
Spicy Sports
www.spicysports.com or
mail@spiceysports.com
Two shops available, one in the upper village and one in the Village shop near the bus/taxi loop.
Wild Willies
www.wildwillies.com
Three stores, most convienient will be at the Pan Pacific Lodge in Whistler Village. Their flier mentions several awards they've won for being one of the top ski shops.
Affinity Sports
www.affinityrentals.com or
info@affinityrentals.com
6 locations, 2 in the Upper Village, 2 in Whistler Village and 2 in Village North. Offer free shuttle and storage when renting.
I would mention prices but that will vary greatly depending on whether you want a standard or high performance package, whether you need boots, etc.
If you post what equipment you want/need, I'll be happy to offer some specific pricing/comments.