I've released a beta version of the UTC charts at http://utccharts.com. I'm also creating a thread on the forum (http://forum.ultracoin.net/viewtopic.php?f=7&t=559) for discussion, bugs, suggestions, etc. Please feel free to send me your thoughts! I may not implement everything asked for, but will consider everything. Here's another screenshot of the "compare exchanges" chart. I like this one.