[The Saucepan Man]

My real question is to what extent this 'dark' side we see is the action of the Ring on him, & how much is innate?

Sorry, davem, but I really don't see any 'dark' side to Frodo in this chapters. Of course, he is (like us) not without flaws, but his reactions here are no more than I would expect in light of what Gandalf is revealing to him. As Orofaniel says, he is scared, and quite justifiably so in my opinion. And, while his comments concerning his fellow inhabitants of the Shire do reflect a frustration with their narrow-mindedness (again, understandable given his broader outlook on life), I detect that he nevertheless has great affection for them. Certainly, to my mind, he is being far from literal when he talks of earthquakes and Dragons. As I see it, he is simply saying that they could do with a good shake-up on occasion. And, going by the attitude displayed by Ted Sandyman in The Green Dragon, and the parochial picture painted in the preceding chapter, I see no reason to disagree with him on this.

Hope, in the sense of 'estel - faith - as opposed to amdir - or simple optimism - requires that evil cannot ultimately win - that by its very nature it will bring about its own defeat.

But there must always remain the possibility that evil will win. Otherwise, why bother to struggle against it? Evil will not necessarily bring about its own defeat. This can only occur as a result of the choices made by those who seek to struggle against it.

It is essential, from the perspective of the reader too, that the possibility remains that evil will prevail. Otherwise, why bother reading the book? Of course, we hope that good will defeat evil, because we want a "happy ending", and so we trust that the characters will make the choices necessary to bring this about ("estel"?).

Davem, to go back to your question concerning the portrayal of Gollum in this chapter, there is, as you point out, a tension between Gandalf's comment that "he [Gollum] had no will left in the matter", and his assertion that there remains a (slight) chance of him "being cured before he dies". But I think that this tension can be resolved by taking the comments as referring to Gollum with the Ring and without it. Gollum with the Ring represents the triumph of evil (the Ring) over the will. He had a choice not to seize it, but he failed to make that choice (murdering his best friend into the bargain). He may even have had a shot at freeing himself of the Ring in the early days, although Frodo's failure to do precisely that in this chapter suggests that he was unlikely to have been able to do so. But, after so many years of possessing it, his will was utterly mastered. He did indeed have no will left in the matter while under its dominion. However, his will, while mastered, was not wholly destroyed, since Gandalf is suggesting that, once "free" of the Ring, he does have another shot at redemption. He may remain "bound by the desire of it", but there nevertheless is hope that he will overcome that desire. And, viewed in this way, this seems to me to be consistent with the approach that it is the characters' moral choices, rather than any external conflict between good and evil, that determine which will ultimately prevail. Gollum's ability to make a moral choice is suspended while he is in possession of the Ring and under its dominion, much as it would be if he were incarcerated by Sauron, but it surfaces again (as a possibility) once he is "set free".

Aiwendil

The conventional wisdom holds that exposition is a necessary evil, to be dealt with as briefly as possible and preferably not until the main action of the plot has gotten underway.

Conventional wisdom be confounded! Personally, I don't hold with the view that there is any "correct" way to structure a story. The trick is in the skill of the story-teller. To my mind, Tolkien is able to "pull off" this expositionary chapter so early in the novel by virtue of the quality of his writing (as reflected in the various points which you have listed). Of course, there are some who find that the early chapters of the book (and the Council of Elrond chapter too) drag, so it does not necessarily appeal to everyone. But I think that the majority of those to whom Tolkien's writing appeals are held enthralled by this chapter simply by virtue of his skill as a story-teller.