OPTION A
Motherboard: Gigabyte GA-B85M-HD3
http://www.computeruniverse.net/products/90512286/gigabyte-ga-b85m-hd3.asp
GPU: EVGA GeForce GT 730, 2.0 GB
http://www.computeruniverse.net/products/90574603/evga-geforce-gt-730.asp
SSD: Samsung SSD 850 PRO Series 256GB
http://www.computeruniverse.net/products/90555475/samsung-ssd-850-pro-series.asp
PSU: Corsair CX-Series CX430M 430 Watt ATX 2.3
http://www.computeruniverse.net/products/90496744/corsair-cx-series-cx430m-430-watt.asp
RAM: Kingston ValueRAM 8GB DDR3 1600MHz
http://www.computeruniverse.net/products/90480458/kingston-valueram-8gb-ddr3.asp
Case: Cooler Master HAF 912 Plus schwarz
http://www.computeruniverse.net/products/90398250/cooler-master-haf-912-plus-schwarz.asp
CPU: Intel Core i3-4170
http://www.computeruniverse.net/products/90598082/intel-core-i3-4170.asp
The PC will be used by an older relative of mine for MS office work, browsing internet and watching movies. Maybe a game now and then but nothing too demanding, its user isn’t a gamer by heart
He has 20’ monitor at the moment and when he upgrades, he’ll probably use 24’.
OPTION B:
I have a spare GTX 670 lying around so I thought what if I just use it for this build as I doubt I can sell it for much. My question is: will the CPU bottleneck the GTX670 and do I have to bump the PSU to about 500W if I use that card? The card may be too long too, it barely fits in my full tower case and this is a medium case.
Thanks for your help
Motherboard: Gigabyte GA-B85M-HD3
http://www.computeruniverse.net/products/90512286/gigabyte-ga-b85m-hd3.asp
GPU: EVGA GeForce GT 730, 2.0 GB
http://www.computeruniverse.net/products/90574603/evga-geforce-gt-730.asp
SSD: Samsung SSD 850 PRO Series 256GB
http://www.computeruniverse.net/products/90555475/samsung-ssd-850-pro-series.asp
PSU: Corsair CX-Series CX430M 430 Watt ATX 2.3
http://www.computeruniverse.net/products/90496744/corsair-cx-series-cx430m-430-watt.asp
RAM: Kingston ValueRAM 8GB DDR3 1600MHz
http://www.computeruniverse.net/products/90480458/kingston-valueram-8gb-ddr3.asp
Case: Cooler Master HAF 912 Plus schwarz
http://www.computeruniverse.net/products/90398250/cooler-master-haf-912-plus-schwarz.asp
CPU: Intel Core i3-4170
http://www.computeruniverse.net/products/90598082/intel-core-i3-4170.asp
The PC will be used by an older relative of mine for MS office work, browsing internet and watching movies. Maybe a game now and then but nothing too demanding, its user isn’t a gamer by heart

He has 20’ monitor at the moment and when he upgrades, he’ll probably use 24’.
OPTION B:
I have a spare GTX 670 lying around so I thought what if I just use it for this build as I doubt I can sell it for much. My question is: will the CPU bottleneck the GTX670 and do I have to bump the PSU to about 500W if I use that card? The card may be too long too, it barely fits in my full tower case and this is a medium case.
Thanks for your help