Whatever you want. Remember, though, that the Internet is primarily an information resource. In our view, if it doesn't help sell your product, it really doesn't matter how Cool you get. Use graphics, of course, and include a lot of image maps. But keep your pictures small, and related text easy to read.
Visitors get bored when it takes a long time to load a page.
A 60K graphic takes a whole minute, provided there are no further delays while your system waits in a queue to get the stuff. Modems are out there for many times this speed, but the many users still have what they had last year. Meanwhile, many web page builders have decided that it's now time to add graphics, and assume that the interested visitor has at least a 14.4 or 28.8 Kbps modem. 56 Kbps is available, and the industry is seeking a standard. Showing your product in use is one of the best ways to attract attention.