[Trlog] TRLOG and Drake C-Line

[WMGaines at MarathonOil.com (Gaines, W M (Bill))]

Exactly what do I need to interface my computer, TRLOG, and my old C-Line so I 
can use a voice keyer like I can do with CW.
Will just a sound card work? If not, what are some good voice keyers and 
where/who sells what I need?
This may be a trivial question to some of you but I am truly ignorant and 
rarely operate SSB contests.

73,s Bill AD8P