I've been very happy with VMware's Fusion product since their public beta a few years ago, using it mainly to run a Debian instance for Haskell hacking, and Windows for doing my tax. Recently the slow HGFS performance has been a drag while hacking ikiwiki, as git seems to take ages to perform a commit on my Mac home directory mounted under Debian. Fortunately, the unreasonably cheap upgrade to Fusion 3 yields a massive speedup.
Hmm, perhaps I spoke too soon. It seems a bit buggy: HGFS doesn't seem to cope with colons in filenames, of which there are many in the ikiwiki bugs directory.