LePhuronn :
Grounding is easy - grab an anti-static strap (cheap enough) clip it to the case and wear it at all times during the build. You can also use a length of fuse wire wrapped around your wrist and hook that into a hole on the case too.
Now, if you're assembling components outside of the case, plug the PSU into the wall but keep the power off and clip the anti-static strap to the fan grille - you're still grounded. When you're putting everything into the case, install the PSU first keep it plugged in and then clip the strap to the metal in the case.
Reasonably good advice, BUT I don't like the idea of fuse wire... A well made anti static wrist strap has a built-in pico fuse that will save your a$$ in the case of a dead short to ground. Also, that same technique will work just the same whether building inside the case or outside the case. No matter which method, start with the PSU, ground yourself, then start handling components. (I prefer to use the MB's anti static bag on top of the MB's foam cushion when starting a build outside of the case, but...)
HSF cleaner compound... Personal preferences, in order:
1) Lacquer thinner, 90% or higher.
2) MEK, fresh bottle or tin.
3) isopropyl alcohol 70% or higher.
4) partner's nail polish remover.
NOTHING will remove the HSF stains left by AS5, short of lapping (again). Iso needs some time to dry, and your partner's nail polish remover will leave some oils that MAY interfere with heat transfer in extreme circumstances....