Blockbuster ( BBI) downgraded at JP Morgan from Overweight to Neutral. Estimates also cut ahead of earnings, as fundamental store changes would take a long time to take hold. CR Bard ( BCR) downgraded at Bear Stearns from Outperform to Peer Perform. Challenges in the surgical division are likely to linger into 2008. Burlington Northern ( BNI) downgraded at Credit Suisse to Neutral from Outperform based on valuation and muted near-term earnings outlook. Lowered target price to $91 from $93. Broadcom ( BRCM) downgraded at Deutsche Bank from Buy to Hold. $38 price target. Company's persistent investments and impacting near-term margins and earnings. Broadcom downgraded at Wachovia from Outperform to Market Perform. Valuation call. Company is showing poor cost controls. Citrix Systems ( CTXS) upgraded at Friedman, Billings Ramsey from Market Perform to Outperform. Field checks look positive heading into 2008. Estimates also raised. $50 price target. Dominion Resources ( D) upgraded at Credit Suisse to Outperform from Neutral based on solid, extended growth prospects and a favorable regulatory deal. Raised target price to $95 from $88. FirstMerit ( FMER) upgraded at JP Morgan from Underweight to Neutral. Company is lowering its credit risk profile, and the turnaround remains in progress. Eli Lilly ( LLY) downgraded at Cowen to Neutral. Stock is already pricing in positive Prasugrel data, which may not be the case.