Hardware advice for Bartop Arcade

[gunit]

Hi guys, I have been researching all the hardware I will need to play classic games of the 90's and more modern ones like SF x Tekken. I'm trying to keep the budget to a minimum and not go overkill as I already own a custom built gaming PC.

Here is the shopping list:-

PSU = Corsair CS450M Power supply, 80 PLUS Gold, semi Modular = £50
CPU = Intel Core i3 4130 3.40GHz Socket 1150 3MB Cache = £82
Intel Motherboard = ASRock B85M-ITX (Socket 1150/B87/DDR3/S-ATA 600/Mini ITX) = £60
Memory = Corsair Vengeance 4GB Memory Module PC3-12800 1600MHz DDR3 DIMM (Blue) = £32
Hard drive = Kingston 240GB SSDNow V300 SATA3 2.5" 7MM solid state drive = £90

GPU =
Asus GT 640 2GB GDDR3 1782MHz DVI HDMI PCI-E Graphics Card = £70
OR
MSI N650TI-1GD5V1, GeForce GTX 650 Ti|1024 MB|GDDR5-SDRAM = £75

Total cost = £385 - ( I would ideally like to be around the 300 for the hardware)

What do you think guys ? graphics card over kill ? smaller gb hard-drive ? anything else ? or maybe I need to spend more ?  look forward to your responses

[gunit]

ok changed to 64 gb ssd and a 1tb sata for roms, which works out about £72 so cheaper. Still need to save about £65, I wonder if I can get a cheaper gpu that is good enough ? cheaper brand of ram ?