Have a look at the link in my signature - Instructions for Growin'. There is a lot of useful information there. Below is a snippet about soil that you may find useful.

Sounds like you have reasonable expectations and that you are doing your home work. Keep us posted!
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Soil:
There are a baffling array of soil choices, and some are more appropriate than others. A true soil has a range of ingredients that may include compost, lightener, peat, lime, and even living organisms such as mycorrhizal fungi, among others. Soilless mixes are much simpler in composition and work very well with the chemical fertilizer regimen that many new growers will begin with.

For simplicity, you can use ProMix, Sunshine Mix, John McInnis', or any equivalent soilless mix which contains nothing but PEAT, LIME, and PERLITE. Any time you use a peat-based soil, start in small cups and re-pot frequently, letting no plant sit in the same pot more than 6 weeks. This soil is also fine for seedlings. The commercial seedling mix I like, Faffards Seedling Starter, is almost identical to ProMix but has a finer texture and a bit of vermiculite added to it as well. Read the links below for more info, ESPECIALLY if you plan a soilless grow.

If you want a true soil, you have the option of assembling one yourself. For general use on plants from about week 3 to harvest, the soil that I think is the simplest to make is based upon the Agway 'manure and humus' product. The composted humus is the #1 most important ingredient in this mix, and will buffer your soil pH, while providing nutrition for your plants. It's $2.50 for a 40 lb bag. One of these bags, mixed to a total ratio of 2:1 soil : perlite (approximately a regular-sized bag of perlite also from Agway), will give you plenty of light, rich medium that will not interfere with your fertilizer regime the way a pre-fertilized soil such as Miracle Gro will. This compost mix is also already pH balanced for cannabis, and buffered around 6.8, ideal for your vegging and flowering plants. You can substitute other bagged compost, such as seaweed compost, if the pH is correct (it should come in at 6.9 or so) but don't use straight composted manure. It has too high a level of nutrients in it. Also avoid starting seedlings in pre-fertilized bagged grow media such as Fox Farms Ocean Forest. It has a lot of fertilizer in it and is better for later, when the plants are big and strong. Re-using soil is not recommended since pests and eggs and salts from your previous grow can harm future plants. Your garden plants will LOVE it though!

Fertilizer:
For fertilizer, you have a lot of choices, but the ones I have really been impressed by are the Botanicare PureBlend Pro line and the Canna line. PureBlend is not OMRI listed organic, but is so heavily organic that you really can consider it the same deal. The 'Grow' formula is fantastic, and you will find it tough to make mistakes. Canna is also not OMRI certified but carries the European organic certification and is an amazing product. They even make a living soil that smells like rich warm earth and grows spectacularly happy plants.

Supplements:
There are scores of supplements on the market, and these should be used with caution. The safest are carb boosters such as Sweet, and unsulfured molasses. The most dangerous are the super bloom high Phosphorous products, and hormone products, which, while they can improve yield with proper use, can also burn your plants if overapplied, or used when there is already excessive fertilizer in the soil. I generally think people should avoid these until they have made it through a couple good harvests, as you will have more than enough yield already for personal use. The combination of a low dose of molasses plus Sweet or TopMax (an OMRI listed carb synthesizer), though, is a real winner. Increased available carbon to the plant stimulates the production of resins and terpenes, allowing the plant to produce both medicinal and aromatic compounds to its genetic potential.