Well, the configuration provided by M Nabil is one of the best current PC configuration there is. You got some options tho. You can wait for the end of the year to pass, cause Intel&AMD have some surprises in store for us, and you might regret in the following year that you didn't have patience and some new more powerfull computer parts have been released. It's all up to you!
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Also, If you're into gaming try getting a AMD Athlon 64 6400+ instead of the Core 2 Duo.
