I would say go w/ the Thermaltake because it has better cooling capabilities and has alot more that comes w/ it. Also it has side mounted HD bays for easy acces. that is a must now adays cause it makes life alot easier. it also has alot more Mobo compatabilities. The other case just looks cool if your a modder but if you where wouldnt you wanna build your own? Whereas the power supply is concerned i would get this one
because for one the 500 watt series isnt that great and you really dont need that much power. im running 4 HD's (4 200gig SATA) and 2 optical drives plus OC'ing out the bumb and it gives me more than enough power. i really recomend the 430 truepower.