Low end gaming build - need advice.

[TheGothBehindYa]

Bitfenix Prodigy 68.95
(Cooler Master Elite 120 Advanced Mini-ITX Case - 39.98 would this fit everything?)


Asus P8H77-I Motherboard
(Any better 1155 boards out there for the price?)


Corsair CMX8GX3M2B1600C9 XMS 8gb 1600mz 2x4gb
(Got this because it's fairly low profile - any suggestions?)


Intel i3 3220 dual core
(Prefer Intel over AMD but open to ideas/new mobo etc.)


VTX3D AMD Radeon X-edition 7850 2gb
(Like the looks of this BUT would spend £70 more if I went win8 dev preview - what card? Can overclock so prefer AMD to Nvidia)


Western Digital Caviar Blue 500gb
(Will get an 840 ssd later, so this isn't a concern)


Corsair 430w CX430
(Enough juice?)


All tapped out on my Samsung Note so I can't give OC links/pictures (ignorance) and have to be brief. Any glaring problems (insufficient psu etc.) or better/cheaper options for similar power? Not a 1080p fetishist, don't mind playing on low/med options since I'm coming from a console and this is entry level.

Thanks! (This...took...ages...to...write. Damn perfectionismosity and idc if that's not a word.)