I believe HCFS = High Fructose Corn Syrup. It's something I avoid as well. It is in most sodas. This is part of why I drink diet coke, even though the artificial sweeteners in it have apparently been linked to brain cancer (or so I've heard). I figure I have to live that long for it to be a problem but HCFS makes me feel like crap in the here and now. (I have heard that, at least during some parts of the year, you can get "kosher" sodas made with real cane sugar and that some niche brands of sodas are available in some limited markets with real cane sugar. But I haven't tripped across any myself.)
You might also be able to find Mexican Coke, which is sweetened with cane sugar. I've seen it at regular grocery stores in upstate NY and CT so I imagine it's fairly common.
There's a grocery store in Los Angeles with a large collection of glass-bottle sodas and they do sell online at http://www.sodapopstop.com/, but there are other sites as well. Elsewhere in California, I've seen Beverages and More have a small collection also.
I specifically cut out foods containing High Fructose Corn Syrup, which is an artificial additive created by doing messily chemical things to maize. Natural sources of fructose I'm not so bothered with.
