Yes you can! With 6x or more 32 gig CF cards, with 4 batteries, I can film up to 10-12 hours, but like what I said, not continously.

The time available all depends on what size card you have. At about 12 minutes per max 4GB file on a 32GB card that gives around 96 minutes or over 1.5 hours. On a 16GB card it's around 48 minutes.

The 32 GB CFs are too cost prohibitive. Just get 2X16GB. Sandisk are doing a nice summer rebate now. The most indispensable most important item is a good tripod and video head. Budget about 800.00 USD for new. For video this camera is very very prone to pick up even the most little jarring or jerks. I would also think the next item to get for outdoor weddings is a good ND filter to allow shallow DOF. The 50mm EF f/1.4 is FANTASTIC for stills and video but if you can manage an entire wedding (and most standard portraiture) with a 24-70 f/2.8L.

I have been using the 32Gb cards for a while now and love them. I often shoot school segments for a TV show that I am working on and the 32Gb is just enough for me to shoot one complete segment. If I was using 16Gb cards I would definitely have to switch right in the middle of shooting. 32Gb cards not cost effective? I got 3 of the SanDisk 32Gb extreme III cards for $400! Got my $200 rebate card in the mail today. That is ridiculously cheap.

These cards rock! I have never once seen the buffer meter. Don't even know what it looks like. Transfer speeds over to the computer are very quick as well.

32GB too expensive? I am shooting ten of the 32GB Ridata 233X cards, they are great. Not a single dropped frame or stutter yet and they were $76.00 ea. Usually get around 90 minutes per card. After shooting P2 for years, CF cards are like heaven they are so cheap.

Dan

and the winner is.......
 

After tons of research we finally decided to go another way. I placed an order today for 2 Canon XH-A1s 's and I really feel it will be the best investment for me and my company!

thanks for every ones input!

Though I'm a 5D Mark II owner, I'm the first to agree that it's not the right tool for every job. It's kind of like a Lotus Elise. It does some things exceptionally well (DOF) - and some things it doesn't do at all (24p, acceptable audio - yet). Like a modern sedan, the A1 isn't as exceptional, but does everything reasonably well. It's certainly the better daily driver.

Best of luck with your new cameras!