Allow me to introduce myself, my name is Corey and I live in Northern California. I have not owned a Macintosh computer since my Macintosh IIci. Over the years I've been forced to use Windows computers for various business and economical reasons. At some point I decided that my android phone was a POS and switched to an Apple phone which was a 4S, now I've managed to get an iPad air, AppleTV, airport extreme, iPhone 6 etc. i've managed to influence my family to all use Apple products and now it's time for a replacement notebook for my Windows 7 laptop. What I'm looking for is the lowest cost MacBook, MacBook Pro, MacBook air that will run Yosemite for just basic computing tasks. I do know more than utilize pages, numbers, web surf, very light photo editing, and face time. So I believe I can get by with the model from 2009 or later. The only requirement I think that I must have his 4 gigs of RAM? I'm looking to spend $300 or less. I've been scouring Amazon, eBay, and craigslist and just wanted to get some model recommendations, or at least minimum model recommendations so that I can use his computer for the next year or so. Not too concerned with 13 vs 15" as I have gotten used to the iPad screen I think. I do want lipo batteries but I think that is becoming pretty standard even on the 09 models. Thanks in advance.