If you check the several insanely large posts that would be on page 2 or 3, you will notice that this has been discussed...IN GREAT DETAIL =p
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"Space is a dangerous place where wimps eat flaming plasma death" -The Zot....or is it the Fot?? We may never know...unless the guy in the back tells us!
Well, not to sound like a parrot - But, here is a thread that has a LOT of info, thoughts and overall, everything you need about the topic for a while. This thing is a loooooong read, but you seem to have a little spare time.