As you can see, I spend an extra 200$ to get:
- ivy bridge i5 (sandy bridge i3 on budget build)
- slightly better gpu (radeon hd 7850 vs. 560 ti)
- ssd (7200 rpm on budget build)
- usb 3.0/pcie 3.0 (2.0 on budget build)
- 1866 ram (1333 on budget build)
More than likely I won't upgrade my ram/mobo/cpu until a new generation (3 years) either way.
I'd go with the second build - but I wouldn't get either HD, you trade speed for space and that's never a good thing. Plus you shouldn't use laptop hard drives (Scorpio Blue) on a desktop build. Get a Caviar Blue 500GB for your HD, you can add the SSD later on.
Also 1866 RAM will be useless, by default your motherboard runs the lowest speeds it can handle, and Intel frowns on using RAM above 1600 due to the design of Sandy Bridge / Ivy Bridge having the RAM controller on the chip instead of the north bridge.
i agree on the psu go to 500w just in case but motherboard not so much so i dont think that need a top notch board or a z chipset for that matter as you have a non overclocking cpu you could get away with your budget one im just not sure about ram speed support although memory controller is on the cpu (look into that) unless you are looking to get into crossfiring that is. get a 3.5 inch hdd to as g unit mentioned will be better bang for your buck. gigabyte boards are solid i have one in my current rig and have had plenty in the past my main gripe with them is fan speed control within bios sucks it only works on cpu header i have resorted to buying a fan controller.if you wanna save some cash on a case maybe an antec one is like 40 bucks