should i upgrade to windows 8.1?

i dont really like the metro look to it and the start screen looks like it was made for tablets trying to be like the ipad. is there a way to get a glossy look just like windows 7 or vista?

here are my system specs:

motherboard: i forgot what it was called, but its made by msi and supports socket am3 cpus and ddr3 ram up to 24 gb

cpu: amd phenom ii x6 965 3.4 ghz

ram: corsair 8 gb ddr3 1600 mhz (2x 4 gb)

gpu: nvidia gefore gtx 660 ti 2 gb gddr5

ssd: ocz 120 gb

hdd 1: seagate 1 tb 7200 rpm

hdd 2: seagate 1 tb 7200 pm

psu: 750 watt

current operating system: windows 7 ultimate (pirated copy)