If you are going into the park for the first time or the tenth time and are looking for a place to rent equipment here is a suggestion:
Algonquin Outfitters: Probably one of the best places to rent(ok I’m a little biased). AO has many options for rentals. Not only do they rent canoes and kayaks but they also rent your basic equipment as well. Tents, tarps, packs, even cooking gear. Algonquin Outfitters has locations in Huntsville, Brent, Oxtongue Lake and Lake Opeongo. http://www.algonquinoutfitters.com
There are two options available for renting. Partial Outfitting which is your canoe and any other basic equipment you might need. Complete Outfitting includes everything you need for your trip including food. If you need a lot of equipment then Complete Outfitting would be the cheapest way to go.
Hope this helps you plan your trip!