Personally I'd go for the HDD+SSD setup, since the SSHD would have to be used for some time before the SSD part actually starts to shine. It basically have to learn which programs you use frequently.
Even though it's cheaper, I'd still go for the SSD+HDD setup. I personally use that, and I do actually have an SSHD in one of my laptops. i know you can't compare a laptop SSHS to the desktop version, but the learning process is the same.
Good luck deciding!