Thanks for the response and the link!

It has 64k miles (seems a little bit neglected though as I mentioned earlier), it is an auto and it has this transimission problem as the previous owner says. Now, how bad is this slipping of gears, I don't really know as I haven't driven it. I think that the price is right as after negotiations we agree at 4,500 so I thought that even at worst case scenario I could get a used transmission (ebay 600-900) and have it installed as is (300-500??, it is going to be plug in not repair so I guess the amount is reasonable) and own it with 6000 total. What do you think? I would like to save some of the extra 1500 that I accounted for though. This is my case if everything else checks out though...Again any advice on what the problem could be will be highly appreciated.