I'm a lifetime PC desktop user who's looking to buy my first laptop. I'm really interested in getting a Macbook. I will be using it mostly as a suppliment to my home network as an interface to my 720p 42" plasma. I'm wondering what the general video performance is of the basic MacBook 13" model. I will be playing a variety of video formats such as DivX/Xvid .avi; .MKV; H.264 .m4v's, etc. No Dvd's or Blu-Rays as I have other stand-alone players for those. I'm really trying to justify to myself expanding my original budget to try and get a refurb MacBook, so I thought I'd ask experienced Mac users what the raw deal was as far as video performance. Thanks in advance for any input!