Ok After fitting the Amanda I can list some of the headaches I had with it.
First let me say the things is very good now it is in the case and running nice and cool. 33 degrees on load and 23 degrees idle. Well makes me chuckle, shame graphics card is at 80 degrees *sigh*.
I do have dominator sticks under the Amanda as well so they do definately fit.
Now what I didnt like about fitting the Amanda.
First off is there is no way of lining up the heatsink on to the motherboard and keeping it in place whilst you attach the backplate.
Heres what I did, ran through fitting motherboard to detachable tray from case. Put processor in, put Amanda on, discover that you do not have a way of holding Amanda in place unless you fit backplate.
Turning the whole lot over to screw the backplate down was unnecessary fiddly compared to other heatsinks I have fitted. Plus you can keep screwing the heatsink down until the motherboard bends out of shape. I noticed there was plenty of room to keep tightening it down when I began to see a slight curve. At which point I slackened the screws off. Strikes me as too much room for error that there is no safe way of knowing you have the right pressure on the backplate to hold everything in place. So its kind of guess that you have it right, or in my case just back from bending the motherboard.
Of course if you fitted the heatsink before the memory, at least in the case of Dominator ram, you will then find that you cannot fit the ram in becuase the heatsink is in the way. Instead of removing it all I just took the front fan off, fitted the memory and then put the front Amanda fan back on.
At this point I found I couldnt slide the motherboard tray back into the case becuase Amanda was too darn big. Well after seeing if I could slide it in like some wierd puzzle out of a christmas cracker, trying every angle. I stopped being stupied and removed the motherboard from the tray, fitted tray, dropped the board straight in on top and put it in place.
Next are the wieight retention straps. Clearly designed for a BTX case becuae if like me you have a power supply at the top you can only really fit one strap properly as there isnt enough room for the second one. I did manage to get it fitted but not as suggested

.
BUT if you do go through all that and you havent fubared up all the arctic silver (god I hope I didnt, I wasnt going to remove the bloody backplate to find out if its still good or not) whilst fiddling round with the backplate and
****. It does give you nice cool temps.