hello im considering changing my current shared hosting plan to a Virtual Private server because i want to start a youtube clone site.

here are the requirments for the script.
    *  Linux Server (some old distributions are not supported)
    * Apache Web Server
    * MySQL (version 4 +)
    * PHP (version PHP 5)
    * PHP Configuration

          o safe_mode = off
          o max_execution_time = 1000 (recommended to prevent timeouts during video upload/conversion)
          o session.gc_maxlifetime = 14000 (recommended to prevent session expires during video upload)
          o open_basedir = (no value)
          o output_buffering = on
          o upload_max_filesize = 100M (recommended maximum video upload size in MB)
          o post_max_size = 100M (recommended maximum video upload size in MB)

    * GD Library 2 or higher
    * FFMPEG ( http://ffmpeg.mplayerhq.hu/download.html ) Make Sure FFMPEG is Fully Updates because script will give errors with old versions of FFMPEG
    * Mplayer + Mencoder ( http://www.mplayerhq.hu/design7/dload.html )
    * Flv2tool ( http://inlet-media.de/flvtool2 )
    * Libogg + Libvorbis ( http://www.xiph.org/downloads )
    * LAME MP3 Encoder ( http://lame.sourceforge.net )
    * CGI-BIN Access
    * Apache mod_rewrite Enabled
    * PHP Configuration (php.ini): register_argc_argv = On
    * Must be able to run PHP from the command line (CLI) with exec()
    * Allowed execution of background processes with exec("binary > /dev/null &")

so will it be possible to run that script on vps and will the Flv2tool, Mplayer + Mencoder, Libogg + LIbvorbis, and the Lame MP3 Encoder come pre installed? Or will i have to install them myself?

This should all be do-able on a VPS hosting plan.  Might drop an e-mail to vps@lunarpages.com to get the specifics about how the extras may need to be installed.

yes i know you are probobly right but right now i can only afford vps, but hopfully it will work out fine for a few months , by then ill be able to switch to a dedicated server.

LP has some very good VPS', I haven't had a problem so far. I've wanted to upgrade to a dedicated, but there hasn't been any reason to.
GL!