Hey guys. I'm seeking some advice. I'm about to order a new Macbook Pro 15" i7 Model. Wondering if it's best to go with the Apple upgrade to 8GB ram + 256GB SSD, or just purchase the base model and upgrade both myself. The pricing doesn't seem to vary too much, but I'm not totally sure of the quality/performance of the parts used by Apple. This is my first Mac product, and would appreciate some help. Thanks in advance!