Which should I upgrade next?

[archelocke]

Planning upgrades, and I frankly have no idea what to go for first. I think probably the CPU, but I wouldn't know. I play very light games like League of Legends. 

 

PCPartPicker part list: http://pcpartpicker.com/p/Gz83K8
Price breakdown by merchant: http://pcpartpicker.com/p/Gz83K8/by_merchant/

CPU: Intel Core i3-6100 3.7GHz Dual-Core Processor  ($122.00 @ Amazon) 
Motherboard: Gigabyte GA-H110M-A Micro ATX LGA1151 Motherboard  ($49.99 @ Amazon) 
Memory: Crucial 8GB (2 x 4GB) DDR4-2133 Memory  ($34.99 @ Newegg) 
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive  ($53.99 @ Amazon) 
Video Card: EVGA GeForce GTX 750 Ti 2GB Superclocked Video Card  ($119.99 @ Newegg) 
Power Supply: EVGA 500W 80+ Certified ATX Power Supply  ($34.99 @ Amazon) 
Total: $415.95
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-03-06 03:47 EST-0500

[Thue500]

A ssd could be a good choice but if you want to spend mpre money buy a better gpu your cpu is fine.