Denon 3910 vs Rega Apollo or other suggestions

I am looking to get better Red Book cd playback and am considering separating my video and audio players. I currently have a Denon 3910 running through a Musical Fidelity X10 Tube Buffer. I am strongly considering the Rega Apollo. Does anyone have an opinion on how much of an improvement this would be, or any other CD player suggestions in this price range?

My system:
Anthem AVM 20
Cary Cinema 5
Denon 3910
Musical Fidelity x10 v.3 / x-psu
MIT interconnects and Shotgun Speaker cable
B&W 703 speakers