New gaming rig, share your opinions!

[BIGseXXXy]

I'm putting my first computer! It's been a very fun learning experience.
I've decided to run my selections thru you guys before I go forward with things.

What I want this for (mostly MMOs, as you can tell, but casual for all cept for WoW):
WoW: steady 60 fps in a 25-man raid during hero phase on medium settings
Star Trek Online
SW:TOR
RIFT
LOTRO
Possibly DotA2, Heroes of the Storm

What I'm looking at:
Core i5 4760
Gigabyte H87N WIFI ITX (to fit into a Bitfenix Prodigy; yes, I do want the WIFI capability; nope, not gonna OC or SLI)
2x8Gb RAM, G.SKILL Ripjaws 2133MHz
240-256Gb worth of SSD, 500Gb worth of HDD, 16 or 32 Mbps (recommend any decent, cost-effective brands for these?)
GTX 670 or 760 4Gb GDDR5 (haven't decided on brand yet, opinions?)
620-625W semi-modular PSU, according to my calculations; also deciding on a brand, probably want bronze or nowt, cable management not priority
Win7 Home
Resolution: not decided yet, please weigh in!
Peripherals: not fussy, only need some opinions on what monitors to use; nothing too huge, 17-20" should do I suppose.

Estimated total cost: about USD$1250 (I'm bad at guesstimation tbqh)

Massive thanks to everyone for their opinions, and to everyone who's stickies I've read. You have all been a great help.
Where brands are a concern, I'll generally want to choose between quality and price (probably not appearances), so just hit me with your opinions.

[Deleted]

You're playing MMO's get an i5-4670k and overclock it, it's the most important part of your system.

8GB RAM is all you need, 1600MHz.

Don't waste your money on 4GB versions of those GPU's, not worth it.

1TB WD Blue HDD for ~$60

250Gb Samsung EVO SSD.

Seasonic, XFX 520-550 will be good. You want modular but cable management not a priority?

Windows 8, no real reason not to.

1080p @ 23-24" is the sweet spot, it's not huge. Second monitor if it's just for multitasking, browsing etc. can be something cheaper I guess.

Edit: Just noticed you wanted to build in ITX, well you can still overclock just find. AIO liquid cooler is probably your best best then.

- - - Updated - - -

I'm a little unclear, is your budget is $1250 total? What about the monitor(s)?

Do you have any of the components already? (Case, Windows 7?)

This is with everything but the monitor:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($219.99 @ Newegg)
CPU Cooler: Corsair H60 54.0 CFM Liquid CPU Cooler ($54.99 @ Newegg)
Motherboard: Gigabyte GA-Z87N-WIFI Mini ITX LGA1150 Motherboard ($133.98 @ SuperBiiz)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($63.75 @ Newegg)
Storage: Samsung 840 EVO 250GB 2.5" Solid State Disk ($174.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($58.99 @ NCIX US)
Video Card: Asus GeForce GTX 760 2GB Video Card ($239.98 @ SuperBiiz)
Case: BitFenix Prodigy (White) Mini ITX Tower Case ($64.99 @ NCIX US)
Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($44.99 @ NCIX US)
Operating System: Microsoft Windows 8 (OEM) (64-bit) ($95.99 @ Adorama)
Total: $1152.64
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-10-27 12:20 EDT-0400)

Asus VS239H-P 23.0" Monitor
Acer H236HLbid 60Hz 23.0" Monitor

[BIGseXXXy]

Thanks for the advice. By the week's end I eventually ended up changing a fair number of my selections, mostly because I found people who have dealer connections so I can access stuff at sub-retail prices.

As of right now the only question I have is regarding what Philips monitor I want (sticking to this brand because of dealer connections). I have been looking at their online catalog, but it doesn't help that they don't list prices. I'll check elsewhere and see if I can find comparisons...