Is there a mac application I can download to convert flv files?

Question

I need them converted to PSP or iPod compatible files and occcasionally, avi movie files.

Answer 1

YouTube Downloader and YouTube Converter. With its "downloading + playing+converting", you can easily download YouTube/YouTube HD videos, and convert YouTube to AVI, MEPG, MPG, MP4, WMV, MOV, 3GP, 3G2, VOB, DV, FLV, MP3, WAV, WMA, M4A, AAC, AC3, MP2 formats. You can also put the converted YouTube files to portable devices like iPod, iPhone, Apple TV, PSP, Zune, Creative Zelen, Pocket PC, etc.
http://www.youtubeconverter.org/