Godin and Taylor both extremely nice, but I think Taylor is getting a little more commercial. I've been eyeballing a Taylor concert, but it's a little pricey and I'm not so convinced to pull the trigger on it.
If you like the sound signature of higher end Martins(but not the price) such as the D-35 and D-45 dreadnoughts, and if you can find it locally to try, try Blueridge BR-180 and above model acoustic guitars. This is a Chinese built guitar line. The unit has been found to be comparable in sound quality by many users, subjectively, as compared up to $7,000.00 USD Martins. It is usually this comparison drawn, as the BR-180 is a close *copy of the structure/bracing/materials of pre-war Martin D-45. The Harmony Central reviews are very useful, as nearly half of the reviewers owned or own the higher end Martins, making their comparisons very interesting. Of course, there are always people that feel one extreme or another(love or hate), but with the overall consensus, most of these users find it to be of extraordinary value. I also believe that bias also plays a part -- just like in the home audio realm -- I suspect that reputation or peer hype can affect perception of sound quality. I would expect, that if theoretically, the BR-180 sounded identical to it's D-45 counter part, that it would still be percieved as worse by most users in a sighted scenario. The BR-180 has a street price of about $1,200.00 USD.
-Chris
*Note: while the same woods, and precise structure shape and braces are used on the body of the copy, the finish is of a different type(poly vs. lacquer?), and I do not know how aged polymers in the wood may change due to age, which might cause a 70 year old guitar to differ to an otherwise identical new guitar. While this is not likely an issue otherwise, the wood on an acoustic guitars is extremely thin, and thus different thick finish coatings might be substantial in mass ratio as compared to the wood itself. I have not made a solid conclusion, however, as I have not subjected this to objective measurement of resonance properties in a properly controlled scenario. But what we have here is a physical copy of an early 1940's D-45, with new wood, and different finish. So you probably can not expect it to sound like a new D-45(slight design modifications? and different finish type) or an old D-45(different finish type and possible factor of age?). But considering these things, this should result in a guitar of very similar type of sound quality and signature.