Analyst upgrades: CYBS, CNTY, SPPI and WGO

MOST NOTEWORTHY: CyberSource, Century Casinos, Spectrum Pharm and Winnebago were today's noteworthy upgrades:

JMP Securities upgraded shares of CyberSource (NASDAQ: CYBS) to Market Outperform from Market Perform citing valuation, positive management comments regarding BidPay, and incrementally positive industry checks on its fraud product.
Brean Murray upgraded shares of Century Casinos (NASDAQ: CNTY) to Buy from Hold based on continued progress at recently opened properties, reduced Street expectations, and potential catalysts.
Brean Murray also upgraded Spectrum Pharmaceuticals (NASDAQ: SPPI) to Buy from Hold. The firm is highly confident that Spectrum's ozarelix will demonstrate similar efficacy and safety in the current U.S. Phase IIb trial and expects statistical significant. The firm expects Ph III initiations by year-end 2007 and Ph IIb data to be released on 2Q08.
Winnebago Industries (NYSE: WGO) was upgraded to Outperform from Sector Perform at RBC Capital. The firm expects Winnebago to begin to post better earnings from more favorable mix and pricing in the 2008 model year.

OTHER UPGRADES:

Merrill Lynch upgraded Cardinal Health (NYSE: CAH) to Buy from Neutral.
Goldman upgraded shares of US Airways (NYSE: LCC) to Buy from Neutral.
Avocent Corporation (NASDAQ: AVCT) was upgraded to Accumulate from Source the Funds at Think Equities.
Collins Stewart raised Cyberonics (NASDAQ: CYBX) to Buy from Market Perform.