I'm still running Tiger (10.4.11) on my BlackBook (see sig. for details). Can I find the old Tiger-to-Leopard upgrade disk somewhere? I'd get the Snow Leopard disk and do a clean install but (i) it seems a bit of a hassle and (ii) why lose Apple's support? I could always get the £25 Snow Leopard upgrade later, and in any case most of the stuff I want is in Leopard (Time Machine etc.). Am I getting something ridiculously wrong here?