Lightroom will not be free for much longer. All the beta versions expire on
April 30. Until then, you can buy Lightroom for $199. After that, the price
is $299.

Nikon Capture 4.4.2 will not be updated in the future. It will not run on
Vista. It does not support any camera introduced since the D2hs. It is
obsolete and will not receive any further support from Nikon.

If you want to continue to use Nikon Capture, you will have to upgrade to
Capture NX. This program is not yet Vista compatible, either, but Nikon says
that they will be offering an update for download soon. They are also working
on a Vista compatible version of PictureProject.

The release version of Lightroom apparently has some features that did not
appear in any of the beta versions, such as the Targeted Adjustment Tool
which is very similar to the very cool "control points" feature in Capture
NX.

DxO Pro is less money then Lightroom (unless you buy the version that handles
the D2x) and is very good at rendering NEF files. It not only will render the
distortion on the 10.5mm fish eye, but it will automatically detect the
Nikkor lens used and automatically remove the distortion caused by that
particular lens/camera combination. It is great for mass processing files.

But Capture 4.4 is dead.

I might also mention that Nikon just released a firmware update for the D80.
You can download it from their web site.

Will the conversion to DNF program work on files from the D80?  That's
free and will stay free if the OP doesn't mind working from DNF files
rather than NEF.  It's on the Adobe download site.

http://www.adobe.com/downloads/

They don't, they just change the EXIF info in the image file, and that's
what the RAW software reads to verify the format.

You'll notice that there are several programs available that open newer
camera files without being updated because they don't use the header
info, they simply read the EXIF and the RAW data and don't care about
mode numbers. I haven't examined them, but I'd bet the D80 and D200 file
formats are identical except for the EXIF info.

Actually Capture NX is a conveter and image editor (although it's not
Photoshop). It does more than just convert RAW files, however it's a bit
fussy in Windows Vista, so I've held off buying it until it's
compatible. I'm using a plugin in Photoshop to edit Nikon D80 files
right now, although I'd rather use Capture since it does a better job of
converting the image.