So, Mark Vidler, undisputed master of the mash-up, has decided to call it a day. I suppose now is as good a time as any; the genre has fallen into a kind of gimmicky disrepair of late - often the best thing about a mash-up is its name (e.g. "Hey African Ladies"). Perhaps all the good ideas have been had.
Anyway, for now, he has made available a CD-length best-of for download, and you could do far worse than head over to the Go Home Productions headquarters and pull it down. If you haven't yet heard "Ray of Gob" for the first time, I envy you.