Automatic Data Processing upgraded at J.P. Morgan: J.P. Morgan said it was upgrading ADP from Neutral to Overweight on sum of parts analysis and operational tailwinds. Beasley Broadcast Group upgraded at Deutsche Bank: Deutsche Bank said it was upgrading BBGI from Hold to Buy on valuation. Maintained $15 target. Dobson Comm. initiated at Jefferies: Jefferies said it was initiating coverage on DCEL with a Buy rating and a $8.75 target citing improving operational metrics through 2006. Ecolab upgraded at Morgan Stanley: Morgan Stanley said it is increasing its rating on ECL to Overweight from Equalweight. Long viewed the stock as a core holdings, but rarely has there been a catalyst to get more aggressive. Entergy upgraded at CSFB: CSFB said it is raising its rating on ETR to Outperform based on strong free cash flow generation and additional earnings upside. Raised target price to $79. Medarex coverage initiated at Morgan Stanley: Morgan Stanley said it is initiating coverage on MEDX with an Equalweight rating. Novel mechanism adds risk but likes long-term outlook. Nucor upgraded at UBS: UBS said it is upgrading NUE to Buy from Neutral. Sees cash use as catalyst. Raised target price to $105 from $92. NYSE Group rated new Market Perform at Keefe, Bruyette: Coverage of NYX was started with a Market Perform rating, Keefe, Bruyette & Woods said. $70 price target, based on a 2007 earnings estimate of $2.15 a share. Public Storage upgraded at Wachovia: Wachovia said it was upgrading PSA to Outperform following announcement of Shurgard acquisition. Maintained valuation range of $86 to $91. Sirius Satellite upgraded at Deutsche Bank: Deutsche Bank said it was upgrading SIRI from Hold to Buy and lowering the target from $5.60 to $5.40 following cost assumption revisions and valuation. Sun Microsystems upgraded at Lehman: SUNW was upgraded from Underweight to Equal-weight, Lehman Bros. said. Revenue growth is stabilizing, and the company is keeping a lid on R&D costs. $5.50 price target.