Low-sodium food stores
If I'm not mistaken, a lot of Eden Organic products -- in particular canned tomatoes and beans -- are made with no added salt. Eden products are available at Whole Foods and other health food stores, and I think possibly even Loblaws (IIRC).
I find that, generally speaking, a lot of "healthy"/organic products are lower in sodium than mass-marketed products (eg. Kelloggs and Post cereals, which I don't even think of as high in sodium, contain a lot more salt than the smaller competitors if you look at the labels).
I also agree with everyone else that your best bet is just to avoid pre-prepared foods as much as possible (easier said than done, I know!).
Bob, the major grocers carry some reduced sodium items like tuna and soups.
Loblaw's has many sodium reduced items in the Blue Label line.
Your Dr. can provide you with a diet information sheet and if you are having a lot of difficulty, a referral to a dietitian.
To get yourself off the salt habit get some of the Mrs. Dash seasonings and if you still have the cravings, a salt substitute that's also in the grocers' spice section.
Most importantly, adjust your taste threshold by avoiding processed and restaurant food while doing more home cooking. In about a week you will start to enjoy how food really tastes without the over-amplification of salt. You will find that a salty meal or snack resets your taste and you will need a few days to re-adjust.
Thanks, Foodie. I'm finding that everything you say about reducing salt content is true, especially about home cooking rather than takeout. Fortunately the lady in my life is a spectacular cook, and has adapted many recipes from her low-sodium cookbook to improve their tastiness. Already my taste buds are coming around, and if I ever tried a salty food now I'm sure it would taste strange. We've tried health food stores for low-salt items, but most of their wares are more concened with cholesterol than sodium content. We've found a few such stores (there's one at Beech and Queen in the Beaches), but we're looking for more.