If you really want to know more about Star Wars then the comic books won't help you a lot. Go to Wikipedia and search for "Star Wars". This is the most complete and regularly updated Star Wars resource on the web. Enjoy. :P
Btw, whoever's playing KotOR II check the TSL: Restoration project. If you, like a lot of other people, think that the ending of The Sith Lords was a little rushed, then check out the site of the Restoration project. A lot of people (some of them professionals they say - or it may be just rumors) have gathered to piece together one of the most ambitious projects I've ever seen. They're planning to employ the unused dialogues in KotOR II and with a little touch on the graphics to create alternative endings as OBSIDIAN should have done if they didn't rush the game so much. The dialogues turn out to be quite a lot and this will result in a lot of additional hours of gameplay. New areas are going to be added - ever wondered what happened with the Droid factory of HK units? Well, that's one of the new areas in the Restoration Project. Check it out for yourselves.