My brother has the Southerland and I have the Decware ZP3. Both are absolutely amazing. You really can't go wrong with either approach. I have attached links to the ZP3 and a review. Both have very low noise floors, the ZP3 is scary quiet for tubes.
http://www.decware.com/newsite/ZP3.htm
http://www.tonepublications.com/MAGPDF/TA_074.pdf
http://www.decware.com/newsite/ZP3.htm
http://www.tonepublications.com/MAGPDF/TA_074.pdf