A 5.1 system is totally different than a 2.0 system. You be have the benefit of surround sound and the deep impact of some movies due to the subwoofer. 2.1 systems are also great for music. No one can tell you what you will like. Go to some retail stores and demo a surround system.
Klipsch RF 7 based HT 7.4, Pioneer SC 35, Acurus 200 Five, Dayton 18 Ultimxa Dual Sub Cab(2), Dayton 18 Ultimax Large Vented Sub Cab (2), on Berhinger I Nuke DPS amps, Samsung BDP F 7500, Asus/My Book Live HPC 4 TB
Yaquin VK 2100 amp, McIntosh XR 5 speakers, Samsung BDP F 7500