Hi Fran,
I also use Live Synth Pro with the soundfonts.
There's quite a few commercial ones available also, though whether or not they're worth the expense is debateable.
There seem to be a mix of good & bad instruments in all of them.
I actually started splitting all of mine up to try and put together the most suitable instruments for me.

I sometimes also just use my Audigy nx 2 usb sound card instead of Livesynth pro etc. The soundcard gives me access to Creative's Vienna soundfont editor. ( not to be confused with Viena).

I find them very versatile.

The problem with some of the psr drum styles is the XG drum mapping, ie you get handclaps where you should have brushes playing.

I think there's a couple of sets of soundfonts that have have xg mapping

Another xg soundfont ( free)
Synergi ( not free ).

I was putting together an xg drumset before my computer crashed, now I've forgotten where I was up to.

With editors you can actually edit a font & even replace instruments.
Other option would be to edit the style.

best wishes
Rikki

[This message has been edited by rikkisbears (edited 04-26-2006).]