Convert VOB and MPG files to MP4

Hello,

I have a few VOB files from footage i recorded with my camera and also a few MPG files from a friend.

I want to convert them to MP4 files. What is the best solution for this ? Can I use iMovie or Final Cut X ?

Also a problem is that both MPG and VOB files are in segments of 3 - 4 files. I want to join them before doing the conversion to MP4.

Thanks in advance

Chris.