I will use this for multitasking, browser, play some game with nice graphics, and sound/video editing.
My primary options are:
HD: Western Digital Caviar Black WD5001AALS 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM
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Monitor: ASUS VH242H Black 23.6" 5ms HDMI Full 1080P Widescreen LCD Monitor - Retail
Mobo: ASUS M4A78 PRO AM2+/AM2 AMD 780G HDMI ATX AMD Motherboard - Retail
Item #: N82E16813131362
I Read i need to avoid the phenom I and get a Phenom II, but what about this one "quad Core" versus the phenom II 710 or 720, and they are AM3, wich mobo should be good for a good price?.
the phenom II 940 is AM2+ and quadcore, but more expensive.
The Phenom II 710 and 720 will both outperform the first-gen phenoms in most things, will overclock farther, and be more efficient. If you can't afford a Phenom II, you should stick with Core 2 Duos, or the AMD Kuma
Newer AM2+ mobos wont need a bios update, but yes. The only time the quad core *may* be a little better is video editing, which you didn't say you did.
The Phenom II 940 is only $50 more and a much better processor for productivity work. I would spend a little extra and get it. It will make a difference in your sound and video editing.