By Lenn Thompson, Executive Editor I'm always proud of the wines that I pick for the Times Union New York Wine Club because, well, if I weren't, I wouldn't pick them. That said, I'm extra excited about our March 2011 selections. For our Basic-Level Members this month, we have an perennial favorite and a charity-minded newcomer. First, we have Shinn Estate Vineyards 2010 Coalescence, a wine that straddles the line between a white and a rose. Sounds interesting, doesn't it? It's steel-fermented blend of chardonnay, merlot blanc, sauvignon blanc and pinot noir blanc. Fresh and fruity-but-balanced it mostly looks like…