delidding works good, and +1 to the liquid metal paste...you need to clean your ihs real good if you plan on using it there (I wouldn't bother using it for the top though)
Just apply a drop on the die, spread it, and apply a small drop on the underside of the ihs.
You gotta spread that too, and it'll help maintain good contact between the ihs and die.
Also crucial is to remove the black glue on the pcb.
If my next 3770k is not a really low voltage sample I'll delid it too.
I have a foolproof method now:
-Wear rubber gloves
-Use a gillette razor to create a small incision on the 4 corners of the ihs.
-After that take a laminated plastic card (bike license works good) and use that to cut through the glue all around.
Having the first incision made by the razor makes this easy (and safer for the pcb or die)
-Apply liquid ultra or pro as described on the die and underside of the ihs.
-Place the chip on the socket pins carefully and put the ihs in place.
-After doing that hold the ihs in place with your finger whilst pressing down the socket retention latch (otherwise you might bend some pins and kill you board/cpu)
-Clean the ihs with alcohol or whatever you like and apply regular tim.