Would just echo timmcat about the software. Used is quite a lot and never had a problem.
As one of my previous jobs/current hobbies is radio electronics I have a full anti-static set-up. I can't use this area for computer mods as it is full of radio gear so...all the mods are done on a standard kitchen work surface - or if i'm lazy on a cotton sheet on the bed.
Before you stick a screwdriver near the hd touch the (clean) metal frame with the blade and your hand. This will equalise the differences in potential and so reduce the possibility of static damage.
One last point, NO scratching or rubbing of head or other hairy places whilst doing the job!