Bitsela
This site is devoted to helping you design and build Jewish Web sites. Their best stuff (of course) they sell on a CD, but they also have plenty of seasonal free images, some animated, some not (the animated little 'Challah guy' has it going on). In addition to the buttons, backgrounds and icons, they have antique drop caps that were inspired by the calligraphy found in a 17th Century Prayer book and over 600 graphic Hebrew letters and words.
