Hi again and thanks to all for the replies!
First of all, Bob sorry for the off topic post. I'll try to never do that mistake again! I'm already a regular visiter of this site and not only since over a year and a half and I've been observing the DSLR market all this time, so my pick would be a Nikon D80 + 18-135mm kit lens. I've already took shots with Canon DSLRs (350D, 400D, 10D, 30D) and Nikon DSLRs (d40x, d50, d80) so i wont continue this conversation on this topic.
Khol, thanks for your apreciations. There's no flame since it was a scent stick. That's only smoke. The lighting was achieved from a ray of light thru the window of the room in wich i made the shot. The smoke was lit from behind and i had to improvise some sort of lens hood so i wouldnt have problems with the lens flare (wich was in the beginning). The only post-processing i made (besides what i already posted) is slight curves on lightness (forgot to mention that, my bad). The end result is very slight different from the original .jpg file (i can't shot .raw).
Thanks again for your replies,
PS: I've had another user on this forum but forgot the password
. Anyway, glad to be "back"