Any B85, H87, Z87, H97, Z97 that suits your storage needs and budget and looks. With a locked cpu like the 4460, OC performance isn't necessary. So it's not really all that important, any will work just fine.
For a gtx970, you'll want a decent 520w or 550w, emphasis on decent. It's the psu, so don't skimp on quality.
You don't need a good cpu cooler, the stock one is fine, but they do get loud under moderately heavy use, so an upgrade might be advised, just for piece of mind.
Case, kinda depends on your aesthetics, you don't need a full tower, atx mid, micro or even mITX would be better, but must also fit other components like gpu length, cpu cooler height and mobo size.
Optical. Upto you, some want them, some don't, some could care less. Will be a case consideration.
Storage. Recommend an SSD, it'll make the OS far snappier and seriously decrease load times on maps etc.
Something like this :
PCPartPicker part list /
Price breakdown by merchant
CPU Cooler: CRYORIG - M9i 48.4 CFM CPU Cooler ($19.99 @ Newegg Marketplace)
Motherboard: Asus - B85M-E/CSM Micro ATX LGA1150 Motherboard ($94.90 @ Amazon)
Storage: Crucial - MX500 250GB 2.5" Solid State Drive ($69.99 @ Newegg Business)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($43.90 @ OutletPC)
Case: Cougar - MX330 ATX Mid Tower Case ($24.99 @ SuperBiiz)
Power Supply: SeaSonic - 520W 80+ Bronze Certified Fully-Modular ATX Power Supply ($49.99 @ SuperBiiz)
Total: $303.76
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-05-13 15:34 EDT-0400