Heavy metal and rock music are a good source of real bass. Satriani, Metallica & White Stripes are good examples. If you like your 'metal' loud then a really good subwoofer is essential to enjoyment. The impact of those drums should be felt as well as heard!
The SVS doesn't even draw breath producing well over 100dB continuously on this sort of material. The same may not be true of your own stereo amp and speakers! Try Satriani's "Engines of creation" at high level for some bass fun. Particularly tracks 6, 7 & 8.
Blue Man Group's "Complex" has amazing bass and is an excellent album that just grows & grows on you.
Peter Gabriel's "Long walk home"
An "electronic music" album with some superb bass. It seems you either love or hate this kind of music. I love it. My wife hates it.
The SVS website has a long list of subwoofer killer DVDs and CDs. (Scroll down after you click on this link)
http://www.svsubwoofers.com/faq.htm#movidemoes