The first case, Interscope, et al. v. Korb, pending in Federal District Court for the District of South Carolina, has been mentioned in Ty Rogers' and Ray Beckerman's  "Recording Industry vs The People" blog:  http://www.recordingindustryvspeople.blogspot.com/#1165445945674208660 In this case, brought by Interscope Records, UMG Recordings, Sony BMG Music Entertainment, and BMG Music, Mr. Luck is defending an individual accused of violating federal copyright law through the use of the KaZaA file-sharing software.

Messrs. Rogers and Beckerman established "Recording Industry vs The
People" to collect and share information on the lawsuits brought by the
recording industry against individuals accused of violating federal
copyright law.  It currently tracks scores of cases across the country
and can be found at http://www.recordingindustryvspeople.blogspot.com/

The second case, Sony BMG Music Entertainment, et al. v. DeMaria, pending in Federal District Court for the District of South Carolina, has been mentioned in the same blog:
http://recordingindustryvspeople.blogspot.com/2007/01/new-contested-case-in-south-carolina.html
And in another blog that follows the music industry:
http://digitalmusic.weblogsinc.com/2007/01/08/since-when-is-making-available-considered-distribution/
In this case, brought by Sony BMG Music Entertainment, UMG Recordings, Arista Records, and BMG Music, Mr. Luck is defending an individual accused of violating federal copyright law through the use of Limewire's file-sharing software.