i have one that i am just gettin a chance to use it at the D next weekend, since i to took the cheap route also on the batteries and had it at the :atc: regatta but the batts said "no way" .
i grabbed some energizer ultimate lithiums and they worked good so far, took some random "truck door mounted" video around town and they still show a good on the battery meter, now i need to comb the internet and get some good rechargables.
the suction cup works like a champ, you could probably use it to pull dents!, i stuck it to my door on my truck the other day and drove around for a bit, when i stopped i released the lock and it still made my door flex tryin to get it loose.
and just for info for everybody, i wasnt paying attention to the card i threw in it and when i got home i went to upload it to my laptop and noticed that i used my 8gb card, opened up the file and it was perfect.