You guys have fun...I'll be suprised if the servers are up for more than a few hours tommorow.
First thing, you guys have at least 10MB of patches to download tomorrow, and with all the people downloading, it'll take awhile...that's if you don't bring down the patch servers.
Second, once you do get in the game, don't be suprised if you crash or disconnect more than a few times; the 11.5 client you'll patch to tommorow was the same client we had at the end of Beta 4, and believe me when I say that's come a long way since 11.0(beginning of Beta 4), but it has a ways to go. You'll probably notice a big difference in lag/stability by the end of the first month if they stay at the pace they were going during the beta.
Third, unless they take it out, the in-game bug report tool is Ctrl+Alt+Shift+F9. Please use it.
Fourth, the fastest way to gain experience(esp. in the newbie area) is to team with other players. This way, everyone on the team shares exp from their kills. You'd be suprised how much damage 4-5 lvl 2 people can do.
That's all for now...I hope you have a good time on Rubi-Ka