hi there, we brought over our PAL tv and plugged it straight in, and so far no sparks coming out of the socket
We also have a wii (no kids but hey it's for adults too

) it's PAL but you can buy NTSC games for your wii in most of the shops. NTSC games are cheaper than PAL (dammit!) and in 5 shops that I went into the last 4 shops were more readily available. I don't know about chiiping your wii to accept any game type (PAL or NTSC) but I'm looking into it as well because as I mentioned, NTSC games are cheaper so will let you know how I get on.
The other thing to mention is if you are bringing over DVD player etc, it's mostly region 2 here but if you have a multiplayer, it shouldn't affect you at all.
Good Luck with your move