This guy is not an Apple genius, he is an Apple idiot!TD
This is what the applestore where I bought my new macbook told me to do.
1. buy a new video camera. (my Sony Mini DV is only 2 yrs old)
2. buy a $200 converter. (which may be good choice at this point)
or 3. Take my mini vd tapes,put them on a G-5 (which I have access to in a school), use a camera run them in real time to render. save this either as data or as a quicktime, burn a disc and run in the new macbook using the new imovie. I saw them do it in the store with 30 seconds of tapes so it didn't take long to render. On the g5 it takes hours of rendering a 60 minute video of 2 high school basketball games stopping and starting over the whole tape.
jj
The only decent advise he could have given you: "Forget the unibody Macbook and buy a MBP or the updated white MB instead."
Without FW the unibody Macbook is useless for DV or HDV capturing, plain and simple.
The easiest workable solution for your problem is going the G5 route with RedTomato's procedure.