Your mileage may vary, of course, but generally I'm much more interested in the big picture when it comes to continuity. It's great to flesh out a universe with smaller details, but I find some of the smaller contradictions, such as the Tantive IV and Ryloth don't bother me very much (particularly because these smaller details are easy to ignore). As for the rest of the CW material, you should definitely read all of the comics. The Republic series in general is fantastic, and is great proof that, though the movies aren't exactly masterpieces, the era has vast storytelling potential. The novels are hit and miss. I don't care if every single word is contradicted by TCW, Shatterpoint is a must read (I sometimes wake up screaming from nightmares of TCW adapting it). Same for Dark Rendezvous. For the most part all of the novels are standalone, though. I love the CW multimedia project, but it isn't exactly as tight in continuity as some like to remember. When I first read the CW material, I was disappointed it all wasn't more connected. The novels have nothing to do with each other, and the comics and novels are separated, aside from one Shatterpoint reference in Republic. I suppose in light of TCW, it's a good thing the CW project wasn't so unifed. It's actually similar to TCW, in that every novel and comic arc tends to function on its own. Where I do believe it succeeded in a way that TCW hasn't, though, is that it gave a much greater depiction of the events of the war (and, of course, it always felt like a war).