I'll address my main issue first, that being viewfinders. I have an old N8008 and it's like looking into a mini theater, the screen is so much bigger and easier to see than my D7000's. My old D70 was even worse and I don't know how I used that camera. But, I think that gripe was more relevant when I was trying to go MF. I have since given that up and gone with AF, so maybe that isn't as big an issue now. Macro is another reason, since that is pretty much MF even with my AF lens. But, again, with the type of macro work I'll be doing, which is gems and minerals in my indoor mini studio, I can tether and use my computer screen, eventually a laptop when I get one.
Ok, now to lenses. My biggest gripe was at the wide end. I remember when 24mm on a 35mm camera was wide and I loved using the distortion to artistic advantage. With DX, the field of view (not focal length. I understand the difference) is like a 35mm. To get the same field of view of a 24mm, I now need a 16mm. Well, ultra wides tend to be pricey and there are few choices. On the longer end, I have an 85mm f1.8, which with the crop factor now has the field of view of roughly 128mm, call it the equivalent of a 135mm on a 35mm body. Now to get the same field of view of the 85, I would be using roughly a 55mm. But now the perspective changes with the shorter lens. I have to get closer to a subject and you know what that does to noses and so forth.
Hopefully I am not off in left field here. I haven't really shot a lot lately, so maybe my concerns are baseless within the context of what I enjoy shooting. I tend to be circumspect and I try to get opinions and learn from others experiences before I make a move.
Based on what you've said, I think I would be better off keeping what I have, shoot a lot more, then see where I stand. By that time it might be even cheaper to get into a D700 if I so decide to go that route. I have wasted money and time in the past making decisions too quickly before weighing the options open to me.
I value any other input my fellow Nikonians on this forum may send my way. Thanks for helping me sort this out.