What do you mean by naturally split? I work from home so I get to spend shiploads of time with my plants, and reading about them, so you could ask me anything you need to know, I respond fast.
Soil soil soil. This depends on what you're going for. If you do not want to worry about underfeeding, (which I rarely see in people with who pay attention to their girls), get soil that already is buffed up with nutrients, like fox farm. If you are worried about over feeding (which is the most common), get pro-mix that has no nutrients in it, and you feed the soil whatever you want with your plants. I use pro mix and I have never followed a feeding schedule, always fed my plants what I feel they need, but you will need to learn how to read your plants better, all in all, I would suggest pro mix, it stabilizes ph very efficiently, and holds plenty of water. If you are going to be home every single day for your plants life, get coco. It does not hold nutes well but it allows for plenty of oxygen to get to the roots, causing increased growth.
For germinating, the method I find most useful is letting the seeds soak for 24-32 hours and then planting them in moist soil. In two to four days, you will have your seedling. I have gotten a tall seedling in one day before. Also, people will tell you very differnt methods of germinating, and they all work!! What they do not tell you to about is the importance of cleanliness. Wether you are feeding, cloning, germinating, etc etc etc, always be clean! I cant emphisize this more. Clean clean clean. Grab a wet cloth of. Leach solution once a week, and rub down your entire box. It does not take over 5 minutes, trust me.