I know the price gap is about 2k wide between the two, but here are my concerns: 1) I've read complaints that DSLR's usually shutoff around 20mins of video recording because of heat issues. I've been searching the net to see if the BlackMagic cameras have similar issues..found none yet. 2) SDXC cards seem to be less durable and have shorter lifespans than SSDs. 3) I've seen really good videos on youtube with the T4i for music videos. Haven't found any compelling videos with the BlackMagic camera yet (possibly because of much less ownership). The BlackMagic camera really attracts me for its SSD and thunderbolt functionality as all my Macs have thunderbolt ports, and SSDs add the durability and capacity. I could take advantage features. But for the price, I want to be sure I could record without periodic interruptions due to overheating. Would be great if any owners of the two chime in here.