Hi, After several power-cuts recently I'm thinking a UPS (or two) for my 2 Mac Pros (1,1 and 5,1) and some music gear would be a good idea. I'm in the UK. I've found a lot of threads from the last several years but most are about US power supply and I'm getting confused by the differences! Will 2 of these be ok? The picture doesn't have it all, but they have 6 sockets in the back. Could I then plug in a load of the gear I have too (Pro Tools 192, Audio Interface, etc)? http://www.amazon.co.uk/gp/product/...&pf_rd_t=101&pf_rd_p=358549767&pf_rd_i=468294 Some of the theads mention a pure sinewave UPS, such as this: http://www.amazon.co.uk/gp/product/...&pf_rd_t=101&pf_rd_p=358549767&pf_rd_i=468294 Is this necessary? I'd rather not pay more than I have to, but at the same time I don't want to skimp on this. Thank you very much for any help you can give.