Upgrade RAMs and choose AMD cpu.. AMD always kicks Intel's ... (dual core ones)
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And if you will publish some media files such as videos and musics, you wont need that big HDD until you host files on server..
Don't get me wrong, I think AMD makes some amazing chips and am a huge fan of their energy efficient dual and single core lines. I use them in a lot of my servers. However... the benchmarks between the processors listed by our OP actually favour the Intel chip slightly. The margins are small enough that I would again recommend my original advise. Take the cheaper offer.