Wow, thanks for all the wonderful advice & birthday wishes!
Kent in SD- I seen that you've been buying used, from eBay for a long time and it encourages me to go that route. Even though I've gone with Nikon, I've always trusted Sigma (especially thier higher end lenses). Very good advice thank you.
Bob_flood- I also agree with buying for the future! It's funny, because when I got the D70s, I thought I would be set. Of course, I was in my early 20's then, and I wasn't thinking about client expectations as technology advanced.
Mary Doo- thank you! And I'll be headed to eBay after re-reading all these replies again!
Andrew- Yes, I just need the camera to be responsive. With what I'm used to, I think I'll be blown away by the advancement of the newer models, period. Besides the 6mp, teeny tiny viewing screen on my D70, and not owning a laptop 100% of the time, I was quite content with it, to be honest.
So I just really want to thank each and every one of you that took the time and went into detail with your advice. It's EXACTLY what I needed, and much appreciated. So after I re-read your comments and let it all sink in, I'll follow up on those 7200 price leads.
Because let's face it.. I'd LOVE to have the 7200! I rarely get these kind of opportunities, so I do what I can to take full advantage!