Whats a good free 3gp converter for OS X?

For mac os:
www.topshareware.com/Pavtube-HD-V…
I know that a free 3gp converter at free-star.org
I think the Need4 Video Converter is your best choice,It alway works well for me. It helps you converter moving videos between all popular formats, Enjoy the highest conversion speed on the market!
Supported formats

A conversion software which helps you convert FLV to 3GP.

Input Video Formats: AVI (DivX, XviD, etc.), DV AVI, MP4 (Sony PSP, Apple TV, iPod, iPhone, BlackBerry, etc), WMV (including Zune), ASF, FLV, 3GP, 3GP2, 3GPP, 3GPP2, QuickTime (MOV, QT), DVD, VOB, IFO, VIDEO_TS, AUDIO_TS, MPG, MPEG 1,2,4, MOD, DAT, MJPEG, VCD, SVCD, H.263. NEW! M2T, MTS, MKV, VRO
Output Video Formats: AVI (including DivX, XviD, MJPEG, and other codecs), MP4 (Sony PSP, Apple TV, iPod, iPhone, etc), WMV (including Zune) 3GP, 3GP2, 3GPP, 3GPP2, QuickTime (MOV, QT), FLV, MPG, MPEG 1,2,4, H.263, H.264, Real Media (RM, RMVB).
Output Video for Mobile Devices: iPod, iPhone, Apple TV, PSP, Zune, PDA/Pocket PC (including BlackBerry), Creative Zen, Archos, Epson media players, any cellphone.

The most convenient online application for converting YouTube flash video to MP3 audio.

Hi, i often use Tipard Video Converter, it works well, which can easily convert all the video formats and also High Definition video files, you can free download here:
www.topsevenreviews.com/tipard-vi…
Step 1: Install and Run the Converter
Step 2: Click "Add File" to add your video files.
Step 3: you can find one format that meets your requirement from the "Profile" drop-down list.

Video to 3GP Converter is a powerful 3GP converter which can convert all popular video files to 3GP video format such as AVI to 3GP, MPEG to 3GP, VOB to 3GP.

After doing the steps above, you can click "start" button to start conversion.
Hope this helps.
usually free version only have the basic functions and poor services.