That's a lot of money to spend on storage considering the rest of the system. You would be far better off just using your old HD and spending that money on a better video card or processor.
If you really need extra storage grab a standard HD.
It has been forever since I've done this for someone online I don't know, but here is my suggestion.
processor 185 -
http://www.newegg.com/Product/Produc...76&Tpk=i5-2300
mobo 115 -
http://www.newegg.com/Product/Produc...82E16813121482
ram 61 -
http://www.newegg.com/Product/Produc...82E16820148262
PSU(55) - whatever you got I guess is fine, newegg doesn't have one I am too excited about. You can't use your old one?
GPU 140 -
http://www.newegg.com/Product/Produc...82E16814121390
total comes to 556. You could always get a 6850 is you're an ATI fan though.
If you still want a HD I'd recommend this one for 65
http://www.newegg.com/Product/Produc...82E16822136319