Figure I would add my 3 cents and stir the pot:)
As a happy (and biased) FX1 user, i have no regrets buying the FX1 and not waiting for the FX7. My reasons are this:
-3CCD that delivers 3 lux. I own the A1 and i am just not impressed with CMOS technology in low light, bright light and changing light.
-Top LCD Monitor (vs side monitor). As a "free" external monitor on the housing, this just can't be beat...i now use this all the time shooting. In addition, it is a color acurate, hi-def monitor. Ext add-on monitors to date are analog driven and neither color or focus accurate.
-Availability of tested housings. It took up to a year for the manufacturers to get it right with the fX1 (L&M to get the housing out, Amphibico to fix the prematurely released housing).
-Availability of wide lens options...critical for wide angle shooters like myself.
-More glass and bigger sensors. I will take all the light i can get into the front of my camera underwater. Every milimeter of sensor and lens opening is critical until some new technology comes along.
-Cost. There does not seem to be a cost advantage (and more so a disdvantage) to the FX7.
Other concerns regardign the FX7 relate to the progressive. I am a huge fan of progressive but, given the insane compression to get 1080i onto a mini DV tape via Mpeg2 compression, I am very concerned about compressing 1080p that much further to get it on tape. Mpeg2 is lossy, hard to color correct and a general downer. How will it handle 1080P?
All this being said, the real answers will be delivered by those willing to venture out, buy the cam and housing and start shooting. Hopefully the cam will deliver in spades. For this reason I hope some of you on the fence go for it with the FX7 and be a guinea pig for the rest:)
-Shawn