Replying to Prosessor for eding HD

OK, so I am looking to upgrade my camera to an HD camera and i have a few in mind, but I hear that working with the avcHD format (witch is what they record in im pretty sure) is quite challenging to work with, especially if your computer is not great.  Well i have a pretty basic computer (PC) with 2 gigs or ram and an intel core duo prosessor, my computer is pretty new as well.  my question is can my computer hold up to that kinda stuff or am i looking at doing a little bit of upgrading.  +K for answers and thanks in advanced