I think SSDs are the answer here. You'll get more space out of a several generation old SSD, and you still stuck to the PCI speeds so performance isn't going t

I think SSDs are the answer here. You'll get more space out of a several generation old SSD, and you still stuck to the PCI speeds so performance isn't going to be much different vs a card with DDR2 or 3 on it. (performance estimates are guess-timization, not calculations)