Refurbished iMac 27-inch 2.66GHz Quad-Core Intel Core i5 VS Refurbished iMac 27-inch 3.06GHz Intel Core 2 Duo Hi, I am new to MACs. I am looking at buying a refurbished iMac, I am on a very tight budget. I just saw the refurbished apple store for these two iMacs and the price difference is about 400dollars. the only difference i see in the spec is i5: Processor 2.66GHz Intel Core i5 (quad core) Cache 8MB shared L3 cache Graphics ATI Radeon HD 4850 with 512MB of GDDR3 memory C2D: Processor 3.06GHz Intel Core 2 Duo Cache 3MB shared L2 cache Graphics ATI Radeon HD 4670 with 256MB of GDDR3 memory I have already overstretched my budget in considering the C2D and then a friend confused me by suggesting the i5.. I am now in stalemate in buying a mac. a quote from my friends email: "If you are going to sell it in 18 months time C2D would probably do. Any longer ? I would look at east at the i5. Then you know it will happily run any new OS and Software. i.e. 10.7 - CS 6 etc. in three years time." My use is pretty basic - home use, kids school projects, and some work on dreamweaver/photoshop. Maybe watch some streaming videos. Do some internet voice/video chating with relatives overseas. - u get the picture. I do see this as a long term investment, considering the cost. I am a PC user ( i hope that's not a forbidden word here . I am just bored / tired of viruses/ wireless issues/ etc and just wanting to try something else then Windows!! Any good advise would be appreciated. Thank you btw: i did search the forum, but found older post discussing these machines (nothing about macs with the spec i have written above) and also nothing that exactly addressed my question.