HTC EVO 4G :: Turn Off Sense UI?

First, How do you turn off Sense UI (Is it adviseable or not adviseable--I heard a guy griping on Android Central and another guy said, just turn it off --will it look like the Nexus I had?)

Second, I used Qic for a vid call. Great. Then a video message. I realized these messages are "ONLINE" or in my profile for people to watch unless I hit "private" BEFORE the video, correct. Well,the main part, how do i delete videos that were taken? Is it true or are they still working out the details, that Qik users will be charged five dollars thru paypal, not Sprint. I was not told that. I would be upset. I suppose like Telenav, we could take off phone or not use account and not be charged, unlike 4G