This is almost certainly going to be your easiest bet, especially if you are an electronics novice (no insult intended, just going by the content of your posts.)
Check out this UPS list for info on UPS connectivity issues. UPS software on your PC will ensure graceful shutdown, which is necessary if you are going to use Windows.
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Rory
MkIIa, blue lit buttons, memory upgrade, 1Tb in Subaru Forester STi
MkII, 240Gb in Mark Lord dock
MkII, 80Gb SSD in dock