How good would this be?

Im rethinking about what parts im getting and im trying to get good things that will last for a few years so i don't need to ask my dad like every year for upgrades :L

Note: I Live in the UK and im buying from a company that is in the UK so if you have any suggestions either give me the link of it on Novatech or Amazon UK

Im thinking about getting:
Processor:AMD Piledriver FX-8 Eight Core 8350 4.00Ghz (Socket AM3+) Processor
Motherboard: ASUS M5A97 LE R2.0 AMD 970 (Socket AM3+)
Graphics card: MSI AMD Radeon HD 7870 OC 2GB GDDR5
Power Supply: Corsair Builder Series CX500 - 500 Watt 80 PLUS® Power Supply

Would i be able to get a good FPS on the new games coming out like Battlefield 4 and Watchdogs and GTA Online?

Get at least a 850 PSU from either corsair, thermaltake, silverstone, coolmaster.

Just check for a silver or gold certification

Also check the prices for SSD hard drive, as it will increase the performance of loading times in all games