Of course owning a Nikon you really should try out Capture NX. This software is great as it retains the unique Nikon in-camera settings (if you want it to) and offers "Control Point" adjustments. Much easier to use than Photoshop although if you need to change specific areas of an image sometimes you just can't go by PS. Capture NX also eats RAM, 2GB is a minimum.
I will reinforce Zorros comments re Capture NX and add a little clarification in that Capture NX allows you to go to the camera settings section and change the photo by altering the cameras menu in regards to colour hues and exposure as though you were doing it on the camera before taking the shot. To my mind, NX is more akin to developing a raw print rather than enhancing an already created image. As to the memory side of things, the updated version of NX is faster than the first but the need for more memory arises from the temporary cache figures that it produces in the rendering of NEF files but regular flushing of the temporary files from the hard drive after saving 6 or so images seems to keep my machine working fine even running on an old platform and using 1gb RAM.
RushRocket, if you go to Nikon imaging USA, Capture NX is available as a trial download and you can buy a license key online should you decide to keep it after the trial finishes. The other point I would make is that I think the D80 still comes bundled with the Picture Project software, if that is the case, try Nikon View as an alternative, it is a better featured software package when used in conjunction with Nikon Transfer for basic file transfer and cataloging of images. Both View and Transfer are now available as free downloads from Nikon and are rumored to be the replacement software packages bundled with D80 >>> range of cameras.