Ah, a fellow Rhode Islander! I'm down in Narragansett.

If you're working with landscapes I'm going to have to suggest you go medium format. To capture every detail of your scene you need more resolution than 35mm can offer you to really come out with astounding enlargements. Don't get me wrong; 35mm is great for it, but it's no 6x7 (or 6x6, or 6x4.5 for that matter)!

A nice inexpensive entry to modern MF is the Mamiya 645E. Sekor glass is hard to beat in my opinion.