Willy,
Welcome to the forum where you can stay wired.
For a person just starting out, I would suggest you purchase a Do-it mold of the jig you favor most. Best place with the best price would be Barlow's. You can do a search on 'Do-it mold' or 'jig mold' to read up on some of it.
Heat sources vary, so I would suggest a search for 'lead pot', 'Lee melting pot' or 'RCBS Furnace' to gather info on them.
Supplies are not really too numerous. Hooks, weed guards, powder paint and skirts material should about do it. For the lead, you kind of get it where you can. It is everywhere really. Tire shops for wheel weights, dentists for lead x-ray tabs, scrap metal yards and so forth. There are many posted subjects on lead on this forum with some very knowledgeable people discussing it. Do a lot of reading, and STAY WIRED!
Good luck