All good information here...
One site for you to check out is:
http://castboolits.gunloads.com
That said, I've been melting lead into projectiles for years. Just pistol stuff. You can melt lead for rifle rounds, but you'll not want to push to maximum velocities. There's a lot of diehards that load lead for rifle though. Mostly for legacy cartridges that you just can't buy ammunition for. A good many of them being Black Powder cartridges.
For 9mm, it's not worth melting your own lead. You can buy bulk bullets in 9mm at nearly any weight for prices that aren't cost effective once you factor your time into the lead melting process.
But, for the Bullseye shooter to get good .45acp loads, once you've mastered the craft, it's tough to beat your own concoctions. So that's what I do. I create my own 204gn SWC's, and 230gn HP's and 230 TC's for my 1911's. (Yes I know, there are reputable target bullet suppliers out there... I've got time to create my own though. That makes it cost effective for me.)
I also create my own plinking bullets for .38spl, .357mag, .44spl and .44mag.
All from just a Lee melting pot, Lee aluminum and Lyman steel, single and multi cavity molds. The best molds would be Saeco, Star, or Hensly and Gibs. I use what I consider to be the best consumer Lubrisizer. An old Star. Lead bullets need to have lube inserted into the lube grooves, and for consistency, all your bullets should be sized. I've used Lee and Lyman Lubrisizers. The RCBS is of roughly the same design. Nothing compares to a Star. With reloading jacketed bullets in modern cartridges -You need size/seat/crimp dies on your press, To size lead bullets, you'll need size/lube dies for the particular caliber you're pouring.
For all this, you need a well ventilated area to melt/pour your lead. Lead poisoning is not a fun experience. -So I'm told.
Don't buy a Lyman lead melting beginners kit. Piece-meal your equipment. Here's some rough figures to get started.
One bullet mold- $30-150
Melting pot- $50
Lubrisizer- $150
One sizing die/top punch- $40
Lube/1000- $5
Lead= 7000gns/pound or, 62 115gn 9mmRn bullets per pound of lead.
Lyman publishes a Guide to Bullet Casting. There are other books that have good information.
Buy and beg for your brass.
-Steve