[musictlk] Midi sequencer for windows

[Brandon Keith Biggs]

Hello,
I am wondering if anyone knows of an accessible MIDI sequencer that has 
really basic functionality (no live recording), but has more libraries 
than Microsoft Wavitable Synth...
Someone has asked me to write some R&B pieces for them, and I would like 
to give them a decent demo.
I have a digital piano that has enough sounds for my needs, but I don't 
know how to keep those sounds on the computer after I close my midi 
editor. I can't really play that well, so I write the notes in Lime and 
I can put them to a multi-track MIDI and import them into a sequencer 
that will have more sounds than Lime has.
I do have Sonar, but don't have an external sound card, so I don't know 
if I can use Jaws with it. (most people only have one output, so 
producing music with a single sound-card is fine.)
I don't have any kind of Mack and don't know how to use it even if I 
did, so Garage band is out of the question... :(
Does anyone have any ideas?
Thanks,

Brandon Keith Biggs