>>292651If you mean only gear guides, dpreview would be your first stop. As I said, my suggestion is a used D40 with the 18-200mm lens. A very budget and entry-level kit, but will give you a great place to start with "real" photography.
Don't fall for the temptation of buying a point and shoot. A P&S without Manual mode will hardly be a step up from your mobile camera. And for at worst twice the price of a decent P&S with manual controls, you can get the above SLR kit, so it's not worth it.
I think you mentioned something important, about taking 1-2 minutes to frame your pictures. I think this shows, as opposed to thousands of uninspired spray-and-pray method shots. Maybe get a film SLR instead (I'm being serious here). A magnitude cheaper, and will save you from the temptation of becoming lazy, by making you think even more before releasing the shutter. Besides, you just can't fake that Velvia look.
Technique-wise, I don't really have any resources at hand. Keep shooting, and keep perfecting, and be critical of yourself. And look at a lot of photos of acclaimed landscapers.
The postcard comment wasn't ill-meant or condescending, at least from myself. There is a great landscape potential in your photos, and one very aesthetically pleasing and broadly appealing too. Mind you, many Ansel Adams' photos would make great postcards too.