I must admit... the computer I'm using is mega loud.
But, it's really not that much of a problem when you think about it. After all, the only time it'll interfere with your recording process is when your trying to record from a microphone that's in the same room as your computer.
The standard length for even a cheapo mic lead these days is about 10 metres. It's also pretty easy to get a hold of headphones with a pretty long lead too!
So, all you have to do is hit record (or have someone hit record for you), take a few seconds to take your position in the other room and off you go!
Sometimes the best solutions are the most simple ones!
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David