What is the differences between a SSD Hard drive and a SATA 6.0Gb/s Hard drive???
Benefits???
Is it worth the cost?

I've been out of the mix for a while building PC's. Just wanted to know is it worth it to spend the extra $$$$
My plan was to get 2 500GB SATA drives and RAID 0 them.
This is current idea at the moment
- Antec Nine Hundred Black Steel ATX Mid Tower Computer Case
- CORSAIR Enthusiast Series TX850 V2 850W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply
- G.SKILL Ripjaws X Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9Q-16GBXL
- MSI P67A-GD65 (B3) LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
- Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) 4 x 256KB L2 Cache 6MB L3 Cache LGA 1155 95W Quad-Core Desktop Processor BX80623I52500K
- 2 Western Digital Caviar Black WD5002AALX 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drives
Total approx. $872 all at NewEgg
I currently have a EVGA 012-P3-1470-AR GeForce GTX 470 (Fermi) 1280MB 320-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Car I purchased in March from NewEgg but now I see it has been discontinued.
Currently running Windows 7 Ultimate 64-bit as well
Any comments of info would greatly be appreciated
Thanks in advance
