I'm looking to use a cheapo keyboard (it's a midi controller only, no onboard sound capability) w/ computer and speakers to add to my percussion setup for a church Christmas program. I'd like to cover all the mallet instruments on it - xylophone, tubular chimes, bells/glockenspiel. I've got a Hercules Game Theater XP in my computer so I played around with it's midi sounds. None of the built in stuff for these instruments will work - they don't sound real enough by far. Anyone got pointers for how to get some better midi instruments on here?