Spb Mobile DVD
Is great for converting most types of video.
Very simple to use - plus a great feature is that if the movie is in wide screen format, ie - 16:9 , you can crop it and stretch it while restraining the proportions so none of the screen space is wasted.
You can adjust the quality , and you can preview the final quality of the video before you convert it , you can finalise the file size according to the quality you want.
I tried the rest , and stuck with this.
Use core player , you can play anything with it , even FLV files which you can download/rip off youtube.
You can use the new free version of real player for that
Ripping movies to 640*480 does offer greater qauality,but its takes too much space, since we are stuck with a 4Gigs, 320*240 is more than adequate.
IT doesnt make much of a difference, converted video anyway has lossy quality.