I have been using Sax & Dottys Show Hoster along with a dell latitude With an external hard drive for shows. Does anyone know if a 60GB (4200rpm) DELL Latitude D600/D800 2nd Hard Drive Module
would be fast enough to take its place?

I am thinking it should be fast enough but if you haven't bought it yet Office Max has a WD 120 Gig HD USB for $70 after instant saving and Rebate. I picked one up and I am transfering to it as I type.

It is a 7200 RPM.

That's an odd speed for a hard drive. Are you sure it's not 5200 RPM?

It will work fine for karaoke, but you will have problems if you want to run videos.