The resolution of the FX1 is on the ccd chip 960x1080 then converted to 1440x1080 hdv format, interlaced. the "progressive" mode is 960x540 fron chip converted to 1440x1080...
Regarding this forum: Only good thing with FX1 compared to EX1 is the ccd non rolling shutter... but I guess that most of us accepts that compared to all other better performances from the EX1.
Keep in mind that the chip resolution, 1/2", low light performance in a small camera currently requires CMOS so you currently must give up all that if you don't want CMOS. Note that even the RED camera uses CMOS as does the Canon 5D DSLR/Video thing.