Well, as we know, we are not able to get to the store page to look at the upgrade prices as of yet. However, we can try to figure this out. As for the highest end (2000$) I want to try to guess the money for the add ons...And so should you guys. Processor: 100$-230$ 3.4GHz quad-core Intel Core i7 Memory: 80$-90$ 16 GB RAM 160$-180$ 32 GB RAM Hard Drives: 100$-300$ 3T HHD 7200 RPM 250$-300$ 1T Fusion Drive 7200 RPM 400$-450$ 3T Fusion Drive 7200 RPM 180$-200$ 768GB Solid State Drive Graphics: 140$-200$ NVIDIA GeForce GTX 680MX I HIGHLY doubt that these will be the prices...But who knows. I know I would want them to be cheaper.