Re: How hard is casting?
Google Cast Boolits for more info. I cast some times, and do try to avoid wheel weights, lots of them now are made of zinc. If you take proper precautions and work outside or in a well ventilated space, you will be fine. I cast both .45 and .38/.357 loads with Lee equipment purchased in the 80's. Lee also has a simple and easy swage set for most calibers.
The forum at castboolits is a good place to go for info on casting.