Another possibility is to buy two of the Oppo HDMI switches and have the output of one switch used as one of the inputs to the second switch.

I haven't tried it, but "in theory" it should work.
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Sony KDS-R60XBR2
Outlaw 990
5 Outlaw 2200's
L/C/R speakers: Outlaw LCR
L/R Surround speakers: Axiom QS8
Outlaw LFM-1 Plus
Sony PS3
Toshiba HD-A3 HD-DVD
Comcast 8300HD DVR
URC MX-850