www.doom9.org IS definately the best, u can also check
www.vcdhelp.comi've been ripping 4 about 2 1/2 years and depending on your system , it'll take about 9 to 40 minutes to rip the dvd, about 5 to 10 minutes to set up the software (depending on exp.), and roughly 3 to 20 hours to convert the MPEG2 (DVD) to AVI/DivX format. Now, if you'd like to do it in real-time, u COULD always go with Cinema Craft Encoder SP v 2.50, the Lite version is 250 dollars, the SP version is about 1800 to 2000 dollars, that's just for the encoder, that's not counting the other software, that is if you're wanting to do a really decent converion.
All in all, expect your first time to be like A LONG TIME PROCESS, but, there's worse thing to be doing, just go to doom9 and read the tutorials FIRST!!!