good pics.. but, they are a little bowed and warped - this happens a with a lot of pics so it's not a big deal... it's just a quirk with camera lenses.
here is how to fix the warping in photoshop... this is off the top of my head so I might be missing a step
under edit.. go to transform... skew... and you can pull out the edges... play around with the other transform stuff like perspective and stretch and you can manipulate the image so that it appears flat and the edges are streight. it's best to do this with the raw image.. crop it down so there is some extra space around the part of the image you want to use.. do all of your manipulations and then crop out the part you want to use.
it's also a good idea to use grids to help make sure all of your edges are streight.
you can also do this with gimp and paint shop pro but I'm not as familiar with those apps so I can't give a step by step from memory.
