Thanks for the RE: fvicente,

I'm mostly interested in being able to generate the sounds of "real" instruments. This will be my primary/first tone generating box, I think, and I need something that will give me some orchestral sounds (strings, brass, woodwinds) as well as some world sounds (sitar, reeds, etc.) I'm not looking to take this live, so load times aren't critical...but I don't want to be sitting around for too long, either.

If I plop in 64 MB of RAM, am I going to be waiting awhile? I'm planning on having the following config:

PC with SCSI host adapter
4 Gig 5400 RPM SCSI HD (formatted for sampler)
8x SCSI CD-ROM

I figure that, since this is my first sampler, I should go with the 6400 to get the 8 CD library as a starter kit.
How are samples on the net? Are the good ones hard to find?