Whether you've collected every episode of the series on VHS tape or you're a Star Trek: The Next Generation newbie, there's tons of fun to be found in collecting. Of course, you've got the usual--action figures in various sizes and degrees of quality, fan T-shirts, posters and the like--but here are some items that are sure to delight.

Reading Material

Death in Winter- Written by Michael Jan Friedman, this novel takes place in the Next Generation timeline after the film Star Trek: Nemesis and features every fan's greatest fear--a character death.
 

Star Trek: The Next Generation Manual by Rick Sternbach and Michael Okuda - Though probably many hardcore fans have memorized every minute detail of the series, there's always more to learn, so check out this book to get the details on the schematics of a "Galaxy-class starship" and the technology behind the fiction.

The Klingon Dictionary - While fluency in Klingon may not exactly earn you a position in the Foreign Service, it's a certain badge of pride for many Star Trek fans. Educate yourself in time for the next convention.

Hardcore

Lt. Worf Lifesize Stand ups - Because every hardcore fan needs to feel like they're part of the action, nothing will ensure you have sweet dreams at night like a lifesize cutout of everyone's favorite Klingon.
 

These are just a few of the great collectibles out there for Star Trek.