Originally Posted by
mcoleg
it's not necessary to use a bolt-through. it will help though - tighter contact, better temperatures. since you are planning to use a mid-range sink, every little bit will help. if you have some bolts and washers at home, just mod it yourself and save $6. if you have to buy some, it will probably run you just as much in a hardware store so might as well get it at svc and save on shipping.
you don't really need to lap anything unless one of the surfaces is uneven.
thermal paste should be ok. i'd go with something better but since you are on the budget, might as well use that for now.
that panny is a good fan but prepare yourself - it's going to be pretty loud. can't control it from bios - no rpm monitoring. so i hope you have a fan controller of some kind.