A lot of good advice, and a lot of weird advice here.
Safety
-Wear long pants, long sleeved shirt, a brimmed hat, goggles, and welding gloves when starting out. The brimmed hat will keep the burning hot lead from landing on top of your head if any moisture gets in your pot. Be sure to tie up your boots or shoes tight and have your pant cuffs cover them. Nothing like having a hot droplet of lead go down the front of your shoe.
-Ventilation- use a fan to blow fumes away from you. Contrary to some beliefs, casting pots do not get hot enough to vaporize lead, but the fumes from flux, tire stems, and dog pee aren't good for you. Its safe to cast cleaned up lead alloy in your house, especially next to a window, but you do not want to render wheel weights inside your house.
-Lead absorbtion through skin- oxidized lead
will absorb though skin, fresh unoxidized lead will not.
-Keep water away from lead. It instantaneously expands to 1000x its volume when it comes in contact with molten lead- 1 drop of water in a casting pot = molten lead sprayed everywhere. While melting your lead, preheat your casting gadgets by setting in the pot to drive off any moisture.
A coffee can on a hotplate or camp stove will work just fine for ladle casting. I use this arrangement for rendering wheelweights. I use a Lee Production Pot IV for casting. I paid about $45 for mine.
Make sure your moulds are very clean and dry- clean them with detergent and a toothbrush before the first use- a tiny bit of oil in a mould will continuously frustrate you with wrinkled bullets.
Lee makes decent fuctionable moulds for very cheap. However, you get what you pay for- Most of my moulds make good bullets, but I have 1 that casts too small for the caliber = useless. Bullets tend to stick in lee moulds due to Lees less attention to detail in making the moulds.
A double cavity costs less than $20. For pistol bullets, I'd go with a 6 cavity, the Lee 6 cavity moulds are far better made than their single and double cavity moulds.
Buy a stick of 50/50 alox bullet lube for about $2. You'll want to use this to lube the sprueplate on your moulds. If you don't lube, the sprue palte will eventually carve a gouge on the top of your mould, ruining it. Don't use Lee Liquid Alox for this, it will burn onto the the mould and gum it up.
Lee Pushthrough sizers are excellent for sizing and only cost about $10. Lee liquid Alox is a very good bullet lube. This will work for pistol bullets in standard sizes very well and will be much faster than using a RCBS or Lyman Lubrisizer.
Some people add a little tin to their melt to get the moulds to fill out better. I've tried it and it helps, but tin is very expensive (about $5 per 1 lb bar of 50/50 tin/lead solder). I prefer to run my melt as hot as I can, it fills the moulds out just as well. Use a damp towel to cool the sprue plate when it gets too hot.
Flux- a handful of sawdust works well. A chunk of candle works well. Marvellux works better than either and gives off a lot less smoke and fumes. (caution) marvellux is hygroscopic and will gather moisture if left exposed to air, my one and only lead explosion occured when I fluxed a pot using a spoon with marvellux residue on it from a flux done 15 minutes earlier.