First on the list is to make sure that SWTOR players have the latest version of the client installed on their computers. BioWare says that if you played the game prior to November 25th, you'll probably need to install a completely new client; if you played since, you should be good. There are instructions on the forums as to how you can check which version you have.
Pre-orders are wondering about early access, which BioWare says is the same between the three editions of the game -- it only matters when you added your pre-order code, not which edition you purchased. More information about the early access program is coming later this week.
Finally, BioWare is preparing to make major changes to SWTOR's forums following a December 10th outage, during which all posts and PMs will be erased (as will infractions!). New forums, including those covering crew skills, story, lore and PvP, will be added, and guild forums will be expanded significantly. Those just starting to learn about the game will appreciate the new player help forum and community blog that's coming with the update.