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2.5 to 3 MHz Flyback Controller chip

Other Parts Discussed in Thread: UCC2800

I am currently using UCC2800 for a 100 kHz 20, 5 output, flyback supply and a UCC2813 for a boost supply.  I need to change the frequency to eliminate some EMI issues. 

What controller part do you recommend for use at 2.5 MHz for these applications?  Rectifier diode recommendations would also be appreciated.  Outputs are 20 volts @ 0.4A, 28 volts @ 0.3A, 16 volts @ 0.1A, +/-15 volts @ .1A, 5 volts @ 1.5A