PrimalCatastrophe :
Oops, I decided a different computer build, simillar specifications (same card and PSU): http://au.pcpartpicker.com/user/xPrimel/saved/ykRLrH
Uh, no. It's a waste of $$$ to pick a i7K with a B150 motherboard. You'd need a Z170 board to make the purchase of a K processor worth it since it's the only chipset that support overclocking (i.e the only thing differentiating a K processor from a non-K one). And for gaming purpose, an i7 is barely better than an equivalent i5. The money you could saved from using an i5 instead of an i7 in a purely gaming build would be much better spent toward other parts like: PSU (stability+expandability) or graphic cards (better $$$-to-performance-gain).
Not to mention having an overclock-able i7 on a low wattage budget PSU...
I'm telling you right now, you don't want to cheap out on PSU, especially if you intend to upgrade the system to such expensive performance parts...
An SSD, simply speaking, is basically a much faster (and therefore more expensive $$$/GB wise) HDD. Having one as your OS drive greatly improve system responsiveness in day-to-day operation and loading time in gaming but it doesn't really have much of an effect on the number of fps you would get.
An SSD is often recommended right from the start to minimize the possible annoyances down the line with regard to cloning the OS Partition/Drive from an HDD to SSD down the line.
PCPartPicker part list /
Price breakdown by merchant
CPU: Intel Core i3-6100 3.7GHz Dual-Core Processor ($158.00 @ Centre Com)
Motherboard: ASRock B150M Pro4 Micro ATX LGA1151 Motherboard ($119.00 @ PCCaseGear)
Memory: G.Skill Ripjaws V Series 8GB (2 x 4GB) DDR4-2133 Memory ($51.00 @ CPL Online)
Storage: Intel 535 Series 120GB 2.5" Solid State Drive ($68.00 @ CPL Online)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($68.00 @ CPL Online)
Video Card: Asus GeForce GTX 960 4GB Video Card ($289.00 @ Umart)
Case: Corsair SPEC-01 RED ATX Mid Tower Case ($69.00 @ CPL Online)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($79.00 @ PCCaseGear)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($137.00 @ Umart)
Total: $1038.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-06-01 22:50 AEST+1000
Switch from Ripjaws 4 (optimized for Quad-channel X99 system) to Ripjaws V (optimized for Skylake's Dual-channel).
If you really do intend to replace the i3 with an i7 down the line... then you have to be willing to spend more to get a better PSU like a FSP HYDRO G 650W.
P.S: You do realize that the SSD cost is not yet calculated in that new build of yours? Also, your initial build include the OS and optical drive, your 2nd build do not include either; you said your maximum is 1000AUD but your 2nd build is 1100AUD+not counting OS or SSD.