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um... just so you know, GPU mining is on its way out except for altcoins. their power consumption is just too high compared to fpga's and asic's. right now, everything is considered over priced because of the rapidly increasing difficulty. if you are trying to make money, look for the most cost effective means, not the quickest to accomplish. you do realize that getting new video cards entails getting/building a new computer.
Well right now you have the option of FPGA (high $ per MH/s), usb block erupters (same as FPGA), or GPU. ASICs have a significant lead time to acquire so they are not viable for someone just getting into mining. You can still make BTC with GPU's right now, but you are right in the fact that they are nearing the end of their mining value. The biggest thing is that TODAY the most cost effective and quickest way to start mining is with GPUs.
And if you go back and read his post, you'll notice he has already purchased a machine that will be more than capable of pushing out 1.5GH\s to 2GH\s when he adds the correct GPU's.
