New builds of SheepShaver and Basilisk II for Windows (dated August 30, 2010) are available now:
http://www.emaculation.com/forum/viewtopic.php?t=5282 (Basilisk II)
http://www.emaculation.com/forum/viewtopic.php?t=5325 (SheepShaver)
The only new thing, though, is that these builds now play a start-up sound (bong!) that is supplied by the user (an authentic sound file is provided in the download, though).
Old time users will recall that the original Windows port of Basilisk II (from ten years ago) could locate the startup sound in the ROM file and play it on boot. This is close to that, at least.