That stuff top quality? Btw, i should actually get a new PSU which would hold up...mine came with my pre-made HP comp...You should be able to afford an Intel i5 3750K with a Z77 chipset motherboard, 16GB of RAM and a GTX 660. What power supply do you have right now?
*changed psu to 750W, changed ssd to 1, that case is hideous, im into antec aero nowadays, looks cool. or u can just get the HAF like everybody else who knows what they r doing.
multicard upgrade
multicard = yao ming . buy a nice card, when its out of date, buy another nice card. if u stack shit, u just end up with more shit. raiding 2 ssd's is also unnecessary, for the extra $200. his budget IS $2000, but im sure he didnt steal that money. (had to go to dark alley, close eyes and suck out of tube)
It's true, if one drive goes down you lose your data, but that's the case if you only have one drive also.
your chance of fail in a raid0 setup is double.