Analyst upgrades:

• Pacific Sunwear (NASDAQ: PSUN) was upgraded to Buy from Neutral by Pali Capital, which cited low expectations, new CEO experience, and compelling risk/reward for the upgrade.
• RBC Capital raised Aruba Networks (NASDAQ: ARUN) to Outperform from Sector Perform, based on increased visibility into wireless networking products.
• J. Crew (NYSE: JCG) was upgraded to Hold from Underperform by Needham after the company reported better-than-expected Q2 report and guidance.
• RBC Capital raised Lundin Mining (NYSE: LMC) to Outperform from Sector Perform, citing updated copper forecasts and valuation.
• Netezza (NYSE: NZ) was upgraded to Buy from Accumulate by ThinkEquity.
• Sanofi-Aventis (NYSE: SNY) was raised to Overweight from Neutral by JPMorgan.
• Williams-Sonoma (NYSE: WSM) was upgraded to Buy from Neutral by Goldman.
• Network Engines (NASDAQ: NENG) was raised to Buy from Hold by Cantor.

Analyst upgrades:

• Barclays upgraded the Integrated Oil sector to Positive from Neutral citing valuations. Note that Exxon Mobil (NYSE: XOM) was upgraded to Overweight from Equal Weight based on valuation.
  
• After Force Protection (NASDAQ: FRPT) reported that its 1H08 sales increased more than 200%, Stanford thinks that Force Protection could be poised for several new opportunities in 2009 and they believe the company's risk is already priced into the stock; the firm raised Force Protection to Hold from Sell.
  
• Cowen expects eHealth (NASDAQ: EHTH) to benefit from the steady decline in employer-sponsored health insurance offered by small businesses and reduced regulatory risk, among other reasons. The firm upgraded shares to Outperform from Neutral.
• Allied Capital (NYSE: ALD) was upgraded to Market Perform from Underperform at BMO Capital.
  
• Caris upgraded Carmike Cinemas (NASDAQ: CKEC) to Above Average from Average.
  
• International Flavors & Fragrances (NYSE: IFF) was upgraded to Neutral from Underweight at JP Morgan.