I never grew up around dirt bikes, I had only riden a dirt bike twice in my life, each time ended very quickly with me crashing. several years ago I bought an 06 YZ450 new. I am a carefull rider, choosing caution over bravery in most situations. I have this rediculous notion in my head that I MUST have a newer, aluminum frame bike because it is better, and will be better for me because I am inexperienced, etc. I want to get a more desert friendly (green sticker or plated) bike and focus on getting better and more aggressive. how much different are the steel frames from the aluminum frames? is there that big of a difference that I would be missing out on if I could have either? I know there are plenty of pre-07 bikes out there that are bad A$$, what is wrong with me? also do the pre-07 have the oil in the frame or was thta just the 426's?