I've moved this to the "Presentation & Marketing" forum, which is where discussions about getting stuff on the web for the galleries, APUG Portfolios and individual websites seems to happen.
This is pretty much straight copy work. If you're stuck with a P&S camera with a fixed zoom, then generally set the zoom to the middle of the optical zoom range to minimize distortion. I've done it with a Nikon Coolpix 990, recently upgraded to a Canon 40D, mainly so that I could use better lenses and for the extra resolution when digitizing negs and transparencies.
I have a copy stand that I leave set up all the time with two Norman LH-2 portable strobe heads and 16" Octabox-type diffusers carefully angled to produce even light and no reflections. Traditionally the lights should be at a 45-degree angle to the copy surface, but since I have them fairly close in, they are at 30 degrees to the copy surface so the diffusers themselves are not reflected in the surface of prints. I also use a 5000K light pad with the strobes off for digitizing negs and transparencies.
For larger work, I use two LH-2000 heads each in plain 5" reflectors at 45 degrees to the copy surface.
Some people cross polarize. I usually find I don't need to for photographs that are flat. If you photograph work with texture, like oil paintings, you may want to cross polarize.