Which computer DVDrom is the best for ripping?

What you want is any burner that

1) does not buffer audio;
2) has the accurate stream feature; and
3) has c2 error correction.

I can't confirm that there really is a difference but at least in theory the buffer is the biggest potential problem. EAC has a mode to compensate for this.

By the way you should confirm that the actual model you are buying has the above features with a little googling, but I highly recommend LG super multi drives. I have never checked for the above features but they are quiet, fast, and have a nice solid tray. I use them when I build high-end computers for people.

I have EAC setup to automatically take charge of iTunes, convert to AIFF and add files to my iTunes library. If I can figure out how to get dbPowerAmp to do that, I may use it because EAC is old and tends to hang in between tracks.