OSI Systems, Inc. (Nasdaq:OSIS) announced that its Security division, Rapiscan Systems, was awarded a multimillion dollar contract from an Eastern European customer in its Eagle cargo and vehicle inspection product line.

Hypercom Corp. (NYSE:HYC) introduced IntelliNAC, a high-density, multifunction point-of-sale network access controller that speeds transactions for financial institutions, merchants and other entities whose businesses benefit from processing large volumes of payment transactions securely, and gives Independent Sales Organizations (ISOs) a unique selling point to offer to their merchant customers.

Macatawa Bank Corporation (Nasdaq:MCBC) will commence its previously announced rights offering and public offering of up to 17,826,086 shares of its common stock on May 10, 2011.

Macatawa Bank Corporation common stock is traded on The NASDAQ Global Select Market under the ticker symbol "MCBC."

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Power3 Medical Products, Inc. (PWRM.OB)