Given that an X58 mobo core presents significantly diminished "operations-per-dollar"
GIGABYTE GA-890GPA-UD3H AM3 AMD 890GX HDMI SATA 6Gb/s USB 3.0 ATX
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128435
With a Phenom-II 965 x4Core@3.4GHz, a Hyper-212 Cooler and 1600Cas7 RAM
There are 100 little reasons why, but I will stick to the most significant.
(1) The AM3 Socket ... Allows the broadest and most modern selection of cpu's and is compatible with (affordable) Hex Core technology (upgrade) or can be down-migrated to very inexpensive cpus, for a later life as a server or HTPC or office/homework build. With a fast quad core and 8GB of memory, it serves very well as a video editing and pro-graphics compute core. (ADOBE CS4). Socket 1156 (INTEL), on the other hand, is just a truncated socket 1366.
(2) The chipset and southbridge and cardbus and integrated graphics ... Superior in bandwidth with full PCIe 2.0 on *ALL* lanes gives double the bandwidth of INTEL PCIe x1 slots (INTEL does give 2.0 on the x16s) ... this allows for fully saturated USB3 and eSATA3 devices, on a single lane ... INTEL tops out at 1/2 the bandwidth.
... The 890GX also has *NATIVE* SATA3, on the southbridge, which leaves other resources open for advanced features. INTEL makes you choose which features will be disabled, due to lack of bandwidth.
Also spend some real time looking at the features and layout ... The cardbus slot layout gives you a much broader and more numerous array of expansion options.
SIX SATA3 ports ... I have plans for all of them!
SO . . . If you view your system as a compute-engine (like a lawn mower) and If you view your motherboard as if it was a breakout-box for your CPU and GPU, then you will understand the logic ... the prudence ... and the wisdom of this selection.
= Well, you DID ask =