Dennis,
I have a loooooong way to go before I can call myself a photographer, but, these are a couple of fundamental things that I'm having to deal with. I've tried a host of convertors and editors. I keep coming back to DPP and Photoshop.
Also, you're more than welcome to download the images and put them through your own processing routines. I'd love to see the results as everyone has their own interpretation of a scene.
Cheers, guys.
Regards,
Humayun