First time building a PC and need some help. I mainly will be playing games on high/ultra settings efficiently and smoothly - some vanilla Skyrim but mostly will be Sims 3 & 4 incl. expansion packs, heavily modded; large amount of photo & music storage; but also for general document processing & storage, web surfing, watching dvds, streaming netflix

I've gotten some suggestions on what may be good for me and liked the look of this build. Could someone give me some opinions on it and the choices for parts.

PCPartPicker part list (http://au.pcpartpicker.com/p/2BZmnQ)
CPU - Intel Core i5-4590 3.3GHz Quad-Core Processor | $299.00 @ CPL Online
Motherboard - ASRock H97M Anniversary Micro ATX LGA1150 Motherboard | $120.90 @ Newegg Australia
Memory - Kingston HyperX Fury Black 8GB (2 x 4GB) DDR3-1866 Memory | $65.00 @ Centre Com
Storage - Samsung 850 EVO-Series 250GB 2.5" Solid State Drive | $129.00 @ Centre Com
Storage - Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive | $99.00 @ IJK
Video Card - PowerColor Radeon R9 380 4GB PCS+ Video Card | $299.00 @ CPL Online
Case - Deepcool TESSERACT SW ATX Mid Tower Case | $55.00 @ Mwave Australia
Power Supply - EVGA 500W 80+ Bronze Certified ATX Power Supply | $79.00 @ PCCaseGear
Optical Drive - LG BH16NS40 Blu-Ray/DVD/CD Writer | $85.00 @ CPL Online
Wired Network Adapter - TP-Link TG-3468 10/100/1000 Mbps PCI-Express x1 Network Adapter | $14.00 @ PLE Computers
Total - AUD$1244.90

I don't know why you have a Network Adapter in there, since your motherboard already has one, but I removed it. Feel free to re-add it but seems redundant to me.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6400 2.7GHz Quad-Core Processor ($269.00 @ PCCaseGear)
Motherboard: Asus Z170M-PLUS Micro ATX LGA1151 Motherboard ($198.01 @ Newegg Australia)
Memory: G.Skill Ripjaws V Series 8GB (2 x 4GB) DDR4-2400 Memory ($73.00 @ IJK)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($129.00 @ Centre Com)
Storage: Western Digital Caviar Green 1TB 3.5" 5400RPM Internal Hard Drive ($69.00 @ Umart)
Video Card: PowerColor Radeon R9 380 4GB PCS+ Video Card ($299.00 @ CPL Online)
Case: Fractal Design Core 1000 USB 3.0 MicroATX Mid Tower Case ($69.00 @ IJK)
Power Supply: Corsair VS 550W ATX Power Supply ($67.00 @ IJK)
Optical Drive: LG BH16NS40 Blu-Ray/DVD/CD Writer ($85.00 @ CPL Online)
Total: $1258.01
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-02-21 02:07 AEDT+1100

My suggestion changes up a few things. Went with a Skylake processor instead of Haswell. Switched the 2TB from Seagate brand to Western Digital. Switched out the PSU for a cheaper one, but of comparable quality. The motherboard I picked supports USB-C if that interests you.