Ya I have a hundred or more coin images on my hard drive and more save on a cd. Most of the pictures are old and not very good but I just don't have the gumption to go back and update them since most are of minor stuff like these.
I have PhotoShop CS2 but I use a free program called PhotoPlus 6 more then I do PhotoShop. Even though PhotoShop is way more powerful I find that PhotoPlus is easier and fast to use to do minor stuff like this. I just open all the images I want to put into the group and make sure each is the same size(dimension wise)and then increase the canvas size of the first picture so all the rest will fit and add the rest as new layers. I then adjust each layer to the location I want and then merge the layers, save it and it's ready to go. Took about 10 minutes to do that one.