Budget gaming PC build under $450

Thinking about picking up a new rig and I’ve got a $3k budget to play with. Ideally, I'd love to go with an Intel processor, but I'm not strictly married to that idea... just looking for the tower itself. I've already got my storage, a burner, and a power supply (an LC Power 450W) ready to go. If that PSU is total junk and needs an upgrade to handle the new build, fine by me, but if it holds up, I'll just keep it running

Do you need a case? That power supply should hold up for now.

1 x Sapphire R7 260X 2GB GDDR5 OC, 2GB GDDR5 128bit, 28nm
1 x Asrock 970 Extreme3 R2.0 - AMD 970, Intel Chipset, ATX, Dura Caps
1 x Intel Core i7 Processor 3.5GHz, 14MB, 95W, AM3+
1 x ZALMAN CNPS 5X, socket 775/1155/1156/AM2/AM2/AM3
1 x DDR3 8GB (1x8GB) Kingmax, 1333MHz, non-ECC, CL9.0

$1009 ADM