Upon search I found three other options (one of which was so bad I won't mention it here):
PizzaTorrent & NowTorrents.
Both look almost exactly like YouTorrent, but both appear to be slower.
PizzaTorrent searches 15 sites and has 7 categories to break search results into, but takes quite a while; however it did bring up twice as many results as the other.
NowTorrent searches 13 sites and has 9 categories to break search results into.
PizzaTorrent has a text ad at the top along with a huge blank spot for no apparent reason, (it might just be IE). NowTorrent has no ads.
PizzaTorrent has Iso Hunt, Torrent Reactor, SuprNova and Vuze all of which Now* doesn't have.
NowTorrent has torrentz and fenopy which Pizza* doesn't have.
I don't know which one I will use, NowTorrent is faster so I will probably run with that, but Pizza* lets you filter your results, so I don't know.