I plan on buying a Mac Book Pro soon with these specs I was looking at this laptop 17-inch: 2.4 GHz 2.4GHz quad-core Intel Core i7 4GB 1333MHz 750GB 5400-rpm1 Intel HD Graphics 3000 AMD Radeon HD 6770M with 1GB GDDR5 Built-in battery (7 hours)2 $2,499.00 My question is I want to get a SSD. Is it possible to have a HDD and a SDD as a secondary drive on a Mac Pro. I will be editing video and heard that SDD will help with overall editing times and also that its fast. Wasn't sure if I could get 1TB HDD and then add a 256 SSD. Will 256 SSD be enough.