Luggage and bags:
You should take the wise advise of bringing enough food for your trip, regardless if you plan to fish or not, because sometimes the fish are not biting.
Keep valuables in wet/dry sacks in case your canoe tips or rain/hail comes down on you.
Clothing/Shoes/Weather Gear: Wear watershoes/sandals that you can keep on your feet at all times, in the water, on the trails, etc.
Also, I've been stuck up there in freak hail storms and thunder, so even in the middle of the summer, bring some cool weather clothes.
Toiletries and Medical Supplies: The mosquitos dont like the heat of the day, nor the cool of the night. The love the sunset and dusk. Bring proper measures for them as well, but if you take a short nap to refresh from a long day, by the time you awake for dinner, they mosquitoes will have dissipated some.
Camping/Beach/Outdoor Gear: Bring everything you would camp with (plus canoe/paddles/life vests). Typically fires are banned, so you'll have to cook with gas.
Miscellaneous: There are several outfitters in Ely and area that can help you out.
Camping/Beach/Outdoor Gear: When I was there in early June, the only bad insects were ticks and flies. But that was bad enough! And I can't imagine what it would be like in July and August with all of those mosquitos!!! So be sure to have bug repellent!
Camping/Beach/Outdoor Gear: I recommend a starters pistol, it's not dangerous, but it scares the crap out of any bear attempting to raid your food while you're camping (in addition to any tent-mates you have who didn't wake up when the bear wandered into camp)