wow,
THANK YOU, all. This has been great feedback and I can't thank you enough.
Sorry I wasn't online to give immediate feedback, am coming down with a pancrease attack and have been bed-bound.
To give you alll some background, I use 3 cameras and shoot purely for hobby. I don't want to make this a living at the moment as I don't want the obligation of having to shoot with £££ in the back of my mind; also, my current career is paying me too well to let it go.
I use 3 dSRLs, a D2Xs for when I am out purely to shoot ... this is my baby camera which I am madly inlove with. A D200, for when I am out with on a trip, or wherever, and I know there will be something nice to shoot along the way. A D40 which is always in my back-pack as my P&S.
I didn't want to upgrade any of my bodies, as I have been very happy with each of them which have delivered great pictures for the price / technical each individual body provided. That said, I find myself more and more looking to upgrade the D2Xs & D200 to something more able to withstand the elements ... and I need to do this upgrade in moderation (am currently of study leave as such my income & savings are stretched).
So, I figure I will upgrade the D200 for now as much as I would love to do the D2Xs first! There is another issue with upgrading the D2Xs, and that is because this specific body is "dirt" cheap in Saudi (I bought mine, new, back in late 2005 for just under £2,000).
Because of this, I want to move out of the D200 first ... even though I am very happy (and I mean VERY happy) with low ISO quality, but very dissapointed with high ISO quality. Yes, I shoot alot at ISO 1600 and even higher ... I am a fan of not using a flash (all the more reason as to why I am aching for the D3).
I figure I may take the plunge now ... seeing that the main issue is with the low ISO primarily. The rest of the issues have work-arounds that I can manage. As for low ISO, I think my D2Xs will fill that gap for now.
Again, thank you all for the very informative replies; this has been a great help
