http://www.cruffler.com/
Everything you need to know is there.
Nutshell: License lasts for 3 years.
You can buy weapons that are classified by BATFE as Curio & Relics: 50 years old, or so designated (you'll see the list at Cruffler).
Handguns are shipped two day air direct to your house.
Long rifles can go slower.
Most of the weapons I own are C&R and they're awesome to shoot, especially a Yugo SKS or a Russian M44, for instance.
You can buy directly, but don't develop a pattern of sales. This is a collector's license, not a real FFL.
Another advantage is discounts from outfits like Brownells, MidwayUSA.
You can get the forms at the above site too. Print them out. Don't worry about page size. Make sure to fill out their latest form ? citizenship authentication or something (didn't have to do that myself).
If you've been a good boy, you should get your license in as few as 25-30 days.
Then, you make 25 or more copies, signing each individually in blue ink, and stowing the "unsigned" license away for safekeeping. There's a good C&R vendor list over at Gunsnet's C&R area. Mail one to every one on the list you choose, and don't forget Midway and Brownells.
You'll have to log in each purchase in a logbook (Brownells).
Then, be prepared to spend some money. It's a powerful feeling to be able to greet the UPS man delivering a gun to your own house.
Well, there's my ramble ....