Electronics Kits for Kids (and Adults)?

blkros asks: "Christmas is coming up, and , I've been thinking about stuff for the kids. I want to get them intersted in technology (other than gameboy and pokemon), and was thinking about the old Heathkit company, and how I used to drool over their catalog as a kid. (Yes, I'm that old <grin!>)Of course they don't sell kits anymore, so I did a web search,and found a bunch of companys that sell kits, eg Ramsey Electronics. My questions are does anyone have experience with any of the companies? Who sells the best? Who's the least expensive?"