this is what i did:
just find a wall paper you like, download the photoshop/paint shop pro trial and use that program to re-size the image. those programs (i used paint shop pro) do a good job at re sizeing images and keeping the quality.
i re sized my image from 1600x1200 to 1920x1200 and it looks great!
Thanks all. I checked out DA and retrieved a few pictures suitable for a background.
I've got another question: Was wondering if a program existed that would change or randomize a number of wallpapers so that each time you booted your machine you would get a different (or random) wallpaper or your choosing?