Hi guys, I am now on the verge of purchasing a camcorder after years of using cameras in a semi-professional capacity. I have narrowed it down to two, although I am open to other suggestions. The two I have my eye on are;

The Canon HV20 & the Sony SR5

However there are a few things that are concerning me about both, and wondered if you could give me your thoughts.

Specifically I want to shoot underwater, and often in low light conditions (rainforests, etc.) I've heard mixed reviews on the HV20 saying that the low light isnt that good. On the other side of the coin I obviously want the best quality possible & everyone seems to lean towards the Canon in this area. I also use a Mac & have come across a lot of postings about compatibility issues with them & the Sony formats.

Bottom line, as mentioned, my primary concerns are the highest quality in this range, in semi-low light conditions. I would like the ability to add a light, and maybe a microphone (but the latter isnt a deal breaker). I'll be editing most of my footage on a mac, so transfering the data easily will also be a concern. Capturing in slow motion is also a must, but i understand that most have this as pretty much a standard.

That's about it! So any suggestions or comments anyone has, I'd be very grateful.