I don't think there really is an equivalent to Chanukah. I mean, who else teaches the fine art of gambling to their children? Foxwoods Hotel & Casino?
Okay, some pronunciations.
The letters on the dreidel are:
Nun - the hardest of these particular 4 letters to pronounce. It's not nun and it's not noon. Rather, the vowel is more like the oo in book.
Gimel - rhymes with the last name of the host of Jimmy Kimmel live.
Hey - sounds just like what they feed horses.
Shin - sounds just like the body part.
How to pronounce the words referenced on the dreidel:
Nes - rhymes with pace.
Gadol - gahdOle, it's dole like Bob Dole and gah like, I dunno, like if you were standing up but had a little rheumatism.
Haya - sounds like what you say if you're kung fun fighting, but the accent isn't quite so heavily on the second syllable.
Sham - rhymes with prom.
Passover, oy, we should write about that next year. You're right, it's considerably more symbolic. One thing about Chanukah, though, at least when I was a kid, since there is something of an emphasis on gelt and gifts, you might want to work in a charitable angle.