Need help finding a good gaming PC build from $500

[kb24214]

Can you guys suggest a $500 build that'll be worth the money? Just use the conversion rate from USD to Philippine Pesos. Hopefully I can build my PC by next year, this is my first time building a PC.
By the way, PC Worx here in the Philippines is limited. So, maybe use this website as reference.
http://www.pcworx.ph/index.php

 

[PepitoTV]

Here is what I came up with:

CPU: Intel Core i3 4130 - 5600
MoBo: MSI H81M-P32 - 3030
Memory: Kingston Hyper X 8GB - 2460
GPU: AMD HD 7770 - 5880
Case: Cooler Master K280 - 1680
HDD: Seagate Barracuda 1TB - 3140
PSU: Corsair CX 500M - 3350

Total: 25140

 

[kb24214]

Here is what I came up with:

CPU: Intel Core i3 4130 - 5600
MoBo: MSI H81M-P32 - 3030
Memory: Kingston Hyper X 8GB - 2460
GPU: AMD HD 7770 - 5880
Case: Cooler Master K280 - 1680
HDD: Seagate Barracuda 1TB - 3140
PSU: Corsair CX 500M - 3350

Total: 25140

Are you sure the i3 will be enough?

 

[PepitoTV]

Of course you can do better from the CPU side, but then you won't have money left for a decent GPU, which is far more important for gaming.