Thinking to buy 3570k core i5 overclocked to 4.6ghz with thermaltake contac 21 heat sink, P8Z77 V LX2 mobo, 8gb crucial ballistix ram and a 760 gtx 4gb graphics card. The idea is these will go in a NZXT LEXA CASE with a 750W ocz psu with a 500 gb sata drive and an ssd if I can find the money. Please advise if this sounds like a good build without buying new case. Thanks.