Upgrades
Omniture (OMTR)- Cantor Fitzgerald Hold » Buy
Digi Intl (DGII)- Feltl & Co. Hold » Buy
Consolidated Water (CWCO)- Janney Mntgmy Scott Neutral » Buy
CSX Corp (CSX)- UBS Neutral » Buy
Applied Materials (AMAT)- Caris & Company Average » Buy
Reliance Steel (RS)- Longbow Neutral » Buy
Post Properties (PPS)- Stifel Nicolaus Hold » Buy
Oil States (OIS)- Stifel Nicolaus Hold » Buy
Helmerich & Payne (HP)- Stifel Nicolaus Hold » Buy
Alliance Data (ADS)- Morgan Keegan Mkt Perform » Outperform
National City (NCC)- Keefe Bruyette Underperform » Mkt Perform
Edwards Lifesci (EW)- Stanford Research Hold » Buy
Vimicro (VIMC)- Susquehanna Financial Negative » Neutral
Vimpel Comms (VIP)- Citigroup Sell » Hold
RiskMetrics (RMG)- Banc of America Sec Neutral » Buy
SAP AG (SAP)- Bernstein Mkt Perform » Outperform
Teekay Shipping (TK)- Citigroup Hold » Buy
General Maritime (GMR)- Citigroup Hold » Buy
Alexza Pharma (ALXA)- JMP Securities Mkt Perform » Mkt Outperform
Goldman Sachs (GS)- Wachovia Mkt Perform » Outperform
Overseas Shipholding (OSG)- Citigroup Sell » Buy
Downgrades
Nova Biosource Fuels (NBF)- Ardour Capital Buy » Accumulate
Xerium Tech (XRM)- Citigroup Buy » Hold
Cash Systems (CKNN)- Barrington Research Outperform » Underperform
Nuvelo (NUVO)- Pacific Growth Equities Buy » Neutral
Intl Paper (IP)- DA Davidson Buy » Neutral
Holly (HOC)- BMO Capital Markets Outperform » Market Perform
Valero Energy (VLO)- BMO Capital Markets Outperform » Market Perform
Frontier Oil (FTO)- BMO Capital Markets Outperform » Market Perform
Tesoro (TSO)- BMO Capital Markets Outperform » Market Perform
Western Refining (WNR)- BMO Capital Markets Outperform » Underperform
Marathon Oil (MRO)- BMO Capital Markets Outperform » Market Perform
Siemens AG (SI)- Bear Stearns Outperform » Peer Perform
Siemens AG (SI)- Deutsche Securities Buy » Hold
Vornado Rlty Trust (VNO)- Deutsche Securities Buy » Hold
SL Green Rlty (SLG)- Deutsche Securities Buy » Hold
Telus (TU)- Citigroup Hold » Sell
Northstar Realty (NRF)- KeyBanc Capital Mkts Buy » Hold
Newcastle Investment (NCT)- KeyBanc Capital Mkts Buy » Hold
Spectrum Pharma (SPPI)- Brean Murray Buy » Hold
Intl Paper (IP)- JP Morgan Overweight » Neutral
Directed Electronics (DEIX)- JP Morgan Overweight » Neutral
United Rentals (URI)- JP Morgan Neutral » Underweight
Seacor Hldgs (CKH)- JP Morgan Overweight » Neutral
American Railcar Industries (ARII)- UBS Neutral » Sell
Dynavax Technologies (DVAX)- Merriman Curhan Ford Buy » Neutral
ViewPoint Financial (VPFG)- Keefe Bruyette Outperform » Mkt Perform