Sorry Marcin - only just had chance to read this.
We've had some great tutorials on Pixalo but this is a contender for the best. You've covered so many important issues and your photos show that you are a master of the art.
You've also shown that it isn't necessary to spend a fortune to achieve fantastic results, and that is an encouragement to newer photographers as well as those who can't afford to buy into expensive gadgetry.
(P.S. Focusing rails - It's often easier to move the camera backwards and forwards rather than altering focus on the lens, as Marcin pointed out. If you're using a tripod, instead of the normal head you can mount the camera on a slide or rails, and move it precisely by turning a wheel.
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