[Will Bridges]

I’m in the process of buying a Mac Pro 12 core. Should I purchase the 2.66 or the 2.93 processor? Is it worth the extra $1200 to go 10% faster. I also want to buy SSD for my computer. Should I purchase 3rd party and save money or will that affect my apple care? Should I buy a raid card. I plan to back up my files on my 8TB Drobo. Any other suggestions?