You might connect with more people on cdt-l, perhaps the CDT forum on whiteblaze.net, and you might also consider the relevant year facebook page --- for example, a lot of current year CDT hikers communicate via https://www.facebook.com/groups/cdt2012/
Note that the CDT is a somewhat different animal from the PCT and AT. Unless you're certain that you want to do it as a single-year thru-hike, you might consider doing it in two big pieces, half or so one year and the rest the next. It's tough enough as it is without having to deal with lots of snow and dangerously high creek crossings; by splitting into two years you can really mitigate that aspect.
Going solo on the CDT: indeed, you can be more alone out there than on many other trails. I hiked a bit more than half of it alone, and I was fine with that, but every hiker is different on this sort of thing. It's another advantage of having hiked one or two long trails before the CDT: you build up a network of friends/acquaintances that you can hopefully start hiking with. I personally wouldn't want to start a long trail with someone that I hadn't hiked with, or at least hadn't been sort of vouched for by someone that I know.