If you want images that download quickly, you'll want to try clip art. A huge library is at The Clip Art Connection. Clip art usually looks best on a white backround. Now for some real color graphics. All you could ever want are at The Virtual Image Archive.
Graphics are great, but anyone can do graphics.
You want your web page to really stand out. What better way to do that than with some video and audio clips. Beware, if you have a slow connection, this might not do you a lot of good. Click here for a site with links to all sorts of sounds. The Vincent Voice Library has a lot of voices on file.