Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
Your son can go on Birthright. Personally, I'd wait until he's out of college so that the trip is a little more mature, but if this summer is key then he can probably find a trip through his school. Birthright is free except for spending money and a few meals.
As far as your daughter, can she hold off 2 more years? Just the flight to Israel is costly..