QUOTE (Warpnow @ Jun 11 2007, 10:00 AM)

God forbid people try and save the enviroment by making you spend an extra half a millisecond melting solder

Buy lead free solder. Its more expensive, but unless you're going to try to solder like pipes together the cost of solder is almost negligible.
Silver solder isn't nearly as nice to work with as lead based solder... it's do-able (and more so if you're used to soldering), but it's a pain in the arse to learn with. And from what I gather, people aren't worried about the environment (as far as the solder is concerned), it's the fumes that are given off during the soldering process. If you live in California, for instance, it apparently can cause cancer there. Fortunately, I don't live in California...
Anyway, to the OP - if your parents are really concerned about it, you can buy silver based solder, usually at the same price as 60/40 solder - it's just harder to learn with.