I am new to Mac. My windows PC that is 9 years old is about to give out. My dads friend is selling his MacBook and offered it to us if we wanted it. I do not know much about Mac's so I was just looking to see if this is a good deal. Specs: 2GHz Intel Core Duo processor 512MB (two 256MB SO-DIMMS) of DDR2 SDRAM 80 GB 5400-rpm Hard Drive 13.3-inch TFT widescreen display Intel GMA950 graphics processor with 64MB of DDR2 SDRAM Built in iSight video camera Front Row and Apple Remote DVD+-RW/CD-RW Built in Ethernet Built in AirPort Extreme wireless networking and Bluetooth 2.0+EDR One Firewire port and 2 USB 2.0 ports Optical digital audio input/audio line in, optical digital audio output Mini-DVI port for DVI, VGA composite and S-video All original packaging and boxing included. http://i44.tinypic.com/fjmiz8.jpg http://i39.tinypic.com/14lhaur.jpg http://i39.tinypic.com/24cd3rq.jpg http://i39.tinypic.com/2eb7kg2.jpg Those are the pictures of it. I was wondering does that 'X' mean it has leopard or tiger or some other variant? The price is $350, but we might be able to get it cheaper. Is this a good deal? Also, if I got this I would buy 2GB of Ram for it since it supports up to that much. Can I put DDR3 ram in it?