Glad you like the forum, Benjamin. I've enjoyed hanging out here for the last year or so. Stick around a while, see the sights...

MrSandman has some good thoughts and ideas. I'll chip in an idea or two, as well as some experience with an Outlaw amp. I've got a 750, which is very similar to the 770 (165x5 rather than 200x7). I would not put anything directly on top of it, but I've got my 750 at the bottom of my rack (no heat sources below it) and have a shelf ~1" above the top of the amp; monitoring it with a thermometer for a few months indicated that it never got more than a couple degrees above 100F in that 1" gap. Also, putting a 770 on top of a CD changer may risk creating a CD changer pancake -- you're talking about almost 90 pounds (plus 20 pounds for the 950). The 770 is also almost certain to be deeper than a CD changer (the 750 is at least as deep as my CD changer, and the 770 is several inches deeper than the 750). Could you put the 770 at the bottom and maybe put some 2" blocks between the top of the 770 and the changer's feet? That would give the 770 breathing room (a little more than my 750 has, but it may want more considering the greater output capacity) until you could get a better rack. Remotely mounting the 770 would probably be even better as far as heat rejection (I think the Outlaws suggested a separate amp stand as a good home for a 770, because of the unit's size), but may be just as difficult as making more space in your rack.

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Gonk