http://store.bisys-education.com/catalog.cgi/D0057H?HRSVT784;;74 passed test first time, used the Total Self Study CBT package. This one has floppies with questions and questions and questions. The books and tapes are good too. Probably other programs out there too which are better/worse. The actual test was very similar to the floppies. almost 2 years ago, sold the stuff on eBay.
Lots of stuff on eBay for series 7. Go to the home page of eBay, and put "Series 7 exam" in the search. One page full of stuff just on that easy search. Good Luck!!