Hi This is my first time posting a thread on this forum I have been a PC guy and now I wanted to change to a Mac. Lately I have been considering these two options I see from craigslist: 1.) White Macbook for $400 Description: The Apple MacBook "Core Duo" 2.0 13-Inch (White) features a 2.0 GHz Intel "Core Duo" processor (T2500), with two independent processor "cores" on a single silicon chip, a 2 MB shared "on chip" level 2 cache, a 667 MHz frontside bus, 512 MB of 667 MHz DDR2 SDRAM (PC2-5300) installed in pairs (two 256 MB modules), a 60.0 GB Serial ATA (5400 RPM) hard drive with "Sudden Motion Sensor" technology, a 4X slot-loading double layer read (single layer write) DVD/CD-RW "SuperDrive", an Intel GMA 950 integrated "graphics processor with 64 MB of DDR2 SDRAM shared with main memory", and a 13.3" widescreen TFT active-matrix "glossy" display (1280x800 native resolution). 2.) iMac 2011 model 21.5-inch for $899 Not much is said about this one except it is still under apple warranty. Any advice?