I agree with half of your position, but completely disagree with the other half.
I don't think Lincoln had a chance back then because people were less[/b knowledgeable. I think Lincoln had a chance because people were actually capable of thinking back then. Today, people support a candidate with an ignorant fervor that can scarcely be explained half of the time. They latch on to one candidate, usually based on one or two "hot-button" issues, and then defend that candidate with any amount of circular, spaghetti logic and head-in-the-sand denial of facts that is necessary for them not to have to admit that they picked the wrong candidate.
As such, I really don't see this whole "brokered convention" thing going our way. I don't however support a third party run either, unless Ron is willing to establish a new party and try to convince a substantial portion of the country into switching to that party as their "main" party.
In other words, if RP plans to run as an "independent" just so he can get in the general election of 2008, then I think that's a bad idea. It'll be a "flash-in-the-pan" approach that will probably end with him just siphoning single (possibly lower double) digits, mostly from the republicans. If, however, Paul realizes that the republican party is lost and decides to start a new, sustainable, long-term party that can build its support over the course of several elections and eventually come to power, then I can see some merit to that idea. This actually happened in Canada in recent years, so we know it to be a viable option.
WATYF