We most definitely do need more discussion about this end of amplifier building.  To not discuss the things that can be the difference between life/death is kind of silly.  although after talking with RG Keen over at diystompboxes, and reading other posts by him choosing the correct fuse is not an easy task. 
so my math (mains side fuse) should be 160VA/22V+22V with a secondary current draw of 3.64A
do i need to multiply the 3.64A by 2 to gget what i should be using?  if im reading the datasheets correctly i need to add the secondaries together to get the correct voltage into the PS to run the amp at 50W output per channel.  this is why i ask about multiplying the secondary current draw. 
my final math should be 160VA/44V=3.64(rounded up)
so 3.64*2=7.28
7.28*3.64=26.5A 
unless i am wrong here a 30A fuse should work???  also being a newbie to fuses in general is a t-type fuse the same as a slo blo fuse?  thanks abunch

what kind of fuse do you guys use with your 3886 amps?  this is something i didn't even think about until i was going over all the stuff i've bought.  oops. im just glad to have realized it before i tried to fire it up!  my transformer ratings are
load capacity 160VA
primaries 115V+115V
secondaries 22V+22V

im not looking to save anything more than my house/life with the fuse so anything that will work for that is great.  thanks in advance
kris

http://cgi.ebay.com/7-4-X-5-4-MASSIVE-HEATSINK-FOR-IGBT-OR-OTHER-1PC_W0QQitemZ300197541590QQihZ020QQcategoryZ66946QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
hi there.  this is my first post here.  i just wanted to know if this is enough heat sink for 2 3886 chipamps? the enclosure is an empties dual 31 band EQ so there is plenty of ventilation.  Also i'm not opposed to putting in a small fan to help if necessary.  if this isn't enough, would the 9.95 one at apexjr.com be enough for said purpose? thanks.  any help is appreciated. 
kris