Just gone up to Tahoe last week and I got a perfect day! Little powder and it is just prefect!
About your new board, I don't you need to wax them till after 4-5 run or simply go to Any Mountain and get it wax for only $10. I got mine done in a few hours and they did a great job because my friend did my board once and it looks uneven. I wouldn't wax it myself especially the first time. Hope this help and happy snowboarding!