Definitely stick to whatever you know, skis are cool cause you can skate and walk around, makes life easier if you're crashing your kite and relaunching all the time. Tahoe snowkiting is hard to forecast, IMO you head out to go downhilling, keep and eye on the wind and stop by to see if its doable. There are a few venues that can work depending on where you're going.
If you can kite and ski/snowboard you can snowkite. My first time (in Idaho) I launched my 12M, headed strait up a hill to some cliffbands and boosted off the lip... Its a super dope sport... be ready to get skunked a little though as mountain winds are hard to predict.
Camas Valley, Idaho and Jackson Hole, Wyoming are the best places in the states (I've never been to Wyoming but I think the wind may be more reliable).
Some of you may know Brad Gordon, he's a Pacific NW rider who sponsers some trips up there, I think he will pick groups up from the airport, drive you to Camas, set you up for sleeping accommodations, trek out and chase winds with you, and follow you around on a snowmobile. It's nice to have someone show you the ropes out there as its not exactly trivial.
http://vimeo.com/19305152