Cpt Underpants :
The suggested builds are all pretty much the same on key components, and they're all great. However, considering you are Canadian and these builds will be closer to $1100 than $1000, the easiest way to cut back costs without any difference in performance is pertaining to whether to intend to overclock. The original build you were looking at used a locked processor, which leads me to believe you did not intend to overclock. If this is true, than you should get another Haswell i5 processor without the "K" suffix, which you pay extra for because it is unlocked for overclocking. Pair this with a cheaper "H87" motherboard, and you could bank some tidy savings without any lost performance, that is of course assuming that you do not intend to overclock.
If you DO want to overclock than I suggest checking out Tom's "Best cpu's of the month" articles. These monthly releases have asserted (for many many months now) that in the mid range i5 processor market, you get far more value with an ivey bridge i5 3570k than the Haswell 4670k. Haswell has very little actual compute improvements, most of it's development went into improving power efficiency (important for laptop battery life) and the intel 4600 integrated graphics (you've got a discreet gpu). You can save money going ivey bridge and Z77 instead of Haswell and Z87, plus ivey bridge has cooler overclocking than haswell.
Thanks for the info. I was thinking about OCing, but, I wasn't sure, I made up a build. Could you check it out?
Total: $1043.20
CPU Intel Core i5-3570K 3.4GHz Quad-Core $243.32
Motherboard Asus P8Z77-V LK ATX LGA1155 $128.99
Memory G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 $78.98
Storage Western Digital Caviar Blue 1TB 3.5" 7200RPM $71.98
Video Card EVGA GeForce GTX 760 2GB $268.98
Case Corsair 300R ATX Mid Tower $74.99
Power Supply Corsair 600W ATX12V $54.99
Optical Drive Asus DRW-24F1ST DVD/CD Writer $22.98
Operating System Microsoft Windows 8.1 - OEM (64-bit)