Update - See the latest rosters here for all Winter Cubs here
Baseball America has the goods on the 2008 Arizona Fall League. Ryne Sandberg will be a coach for Mesa, joining the Cubs' allotment of six players. The Solar Sox also get players from Detroit, Atlanta, Florida and Philadelphia.
From the Cubs' organization:
Barney is the only player below AA, while Berg the only above AAA, amongst the Cubs players. The rest are with Tennessee right now.