A system image of Windows is important, if you screw up something. I agree with @nevj keep Windows and Linux on separate drives, install grub on the SSD and use the grub menu to boot Windows. You can burn a gparted CD and boot your PC and use it to initialize your SSD to either GPT or MBR, probably in your case GPT.
You really do not need the whole 1tb SSD to run Linux, I usually use about 130GB for swap, /, /home, one advantage of using a /home, is that if you install some other Linux over the one you have, you only have to format the / partition, and no files are lost in the /home.
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