can you guys give opinion on this build. mostly for gaming and video editing. is the power supply enough? my budget is around rm5k

Intel i5 4670K RM729
Asus Maximus VI Gene RM789
MSI GTX 770 Lightning RM1849
G.Skill RipJawx 8gb 1866 RM249
PLEXTOR M5S 128G RM 299
WD Blue 1TB RM187
Seasonic X650 RM449
Corsair 350D RM359

thanks

can give opinion about my choices of hardware

Intel i5-4430 - RM559
ASROCK H87 Performance RM375
Value DDR3 8GB 1600 RAM - RM184
SAPPHIRE 7870XT RM769 (is there any card from nvidia that equivalent not more than rm800?)
WD 1TB RM187
PSU - can recommend me for normal and modular type
Corsair 300r - RM269

budget should be RM2600 but can add more for modular PSU

Galaxy GTX 660 GC 2GB GDDR5 RM 530.00, is this a good card? looking to play for games like new games at mid setting. or is there any recommendation below rm600. thanks