I have the option to buy a 2009 13" MBP for $500 - mid 2009 with the 2.53 GHz C2D. At this point, I'm leaning towards it (I'd be using it for iOS development). I know it's been well taken care of.
However, before purchasing, I would like to know if there is anything particular to watch out for when buying this year of MBP. I know that the 2008 models had problems with the NVIDIA graphics.
So, my question: What should I watch out for when purchasing a machine like this?