There are some tools from Asus that will help with the over clocking the CPU, adjust voltage, etc. I've always worried about potential stability issues, and is my cooling adequate, so I'm chicken. I haven't over clocked since my '486 and Pentium days
My EVGA video card also has some overclocking tools, but I've been running it stock as I didn't want to install even more apps.
I've purchased/used DVD Fab Bluray/DVD Ripper... yeah, its really fast (especially if my source is on a hard drive already), but I still come back to BD-Rebuilder because it seems to give me a sharper, better picture (Alt-Movie Only MKV), no matter how I setup DVDFab (rip to MKV). Its ok if I'm on a time crunch, but BD-Rebuilder's output has been more pleasing to my eyes. So for now, I've just been using DVDFab to rip my old TV series DVD's (seems to be a little easier for that), and some movie DVDs, since I still have a bunch I haven't done yet.