I'd like to urge some caution when considering removing the pagefile from Windows. It may seem useless for systems with 6GB+ of RAM, but Windows uses it for some miscellaneous functions, one of which is sleep mode. If the pagefile is removed completely then users typically can't get sleep mode to function properly, in addition to the inability to store crash and error dump files from RAM.
For users with 12GB of RAM I don't see a problem with dropping the pagefile size to say, 4GB, but I'd still recommend leaving the file there. I don't believe moving it to a hard drive would affect using sleep mode, but I actually never used sleep mode to say for sure.
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