Yes, I do have the Capture 3 demo and you are correct. It is better than PS Elements on some things notably the easy change of the white balance. I have not tried some of the other things you mentioned, but I will give them a shot, too. I understand one can call Nikon USA and buy the program with a password that unlocks the demo for $150 usd. That will chip away at what's left of my savings, too. I am sure Nikon UK will have it available as well. So, get your money ready!
I also ordered the Nikkor 17-35 F/2.8 zoom yesterday. I have borrowed and used this wonderful lens before; so, I know what it can do. I am excited about that, too.
What I need to do is shoot more and get use to the digital world. The problem is work interfers and so does the weather. Although I am a life-long Southerner and use to hot weather in July, this year has been brutal. Little or no rain,yet high humidity and temps in the 90-95F degree range daily makes shooting outside a bit uncomfortable.