I started with a Track kit. Most of the tasks are straight forward, so long as you get a good book or books on building kits. Gunsmith of Grenville and American Longrifle are excellent. Get yourself a small drill press. The 100$ or so you spend at Sears, or where ever, will save you a lot of time and trouble. A good hand drill and chisels are needed. Buy the mainspring vise at Track and find youself a good diamond stone and stroping block for the chisels (which you will use razor sharp for scraping, not cutting). Most of all, take your time, if you think you have a problem, you do - ask questions here BEFORE you cut wood or metal, these guys will save you a ton of time and anger managemnent.
Mike F